{"id":119,"date":"2014-10-29T20:00:53","date_gmt":"2014-10-29T20:00:53","guid":{"rendered":"http:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u3hwrk\/mcq-3_5d-hwrk\/"},"modified":"2014-11-27T14:22:10","modified_gmt":"2014-11-27T14:22:10","slug":"mcq-3_5d-hwrk","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u3hwrk\/mcq-3_5d-hwrk\/","title":{"rendered":"MCQ 3_5D Hwrk"},"content":{"rendered":"<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">1.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">In pea plants, the allele for pink flower petals (P) is dominant to that for white flowers (p). A true breeding pink-flowered plant is crossed with a true breeding white flowered plant and the plants of the F1 generation are self-crossed. In the F1 generation<\/span> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif;color: #666666\">\u00a0<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">all of the plants will have white flowers<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">there will be more pink flowered plants than white flowered plants<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">there will be an equal number of pink flowered and white flowered plants<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">all of the plants will have pink flowers<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">2.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">In pea plants, the allele for pink flower petals (P) is dominant to that for white flowers (p). A true breeding pink-flowered plant is crossed with a true breeding white flowered plant and the plants of the F[sub]1[\/sub] generation are self-crossed. The Punnett square shows the genotypes arising in the F2 generation of this cross<\/span> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif;color: #666666\">\u00a0<\/span><\/p>\n<table border=\"0\" cellpadding=\"3\" width=\"100%\">\n<tbody>\n<tr>\n<td><img decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/\/uploads\/quiz\/mediarep171446\/7_2_7.jpg\" alt=\"\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">3.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">In pea plants, the allele for pink flower petals (P) is dominant to that for white flowers (p). A true breeding pink-flowered plant is crossed with a true breeding white flowered plant and the plants of the F1 generation are self-crossed. In the F2 generation what would be the phenotype ratio.<\/span> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif;color: #666666\">\u00a0<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">1 pink: 3 white<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">3 pink: 1 white<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">2 pink: 2 white<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">4 pink: 1 white<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">4.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A test cross is used to find the<\/span> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif;color: #666666\">\u00a0<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">genotype of an individual showing a dominant characteristic<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">phenotype of an individual with an unknown phenotype<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">genotype of an individual showing a recessive characteristic<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">the phenotype of an individual with a known genotype<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">5.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">In mice, the allele for black coat (B) is dominant to that for white coat (b). A mouse with a black coat can be<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">either homozygous dominant or homozygous recessive<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">either homozygous dominant or heterozygous<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">either homozygous recessive or heterozygous<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">only homozygous dominant<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">6.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">In mice, the allele for black coat (B) is dominant to that for white coat (b). A test cross was carried out to determine the genotype of a mouse with a black coat. A possible result of this test cross might be<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">all offspring white<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">all offspring black<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">all offspring bb<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">all offspring recessive<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">7.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">In mice, the allele for black coat (B) is dominant to that for white coat (b). A mouse with a black coat can be<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">either homozygous dominant or homozygous recessive<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">either homozygous dominant or heterozygous<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">either homozygous recessive or heterozygous<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">only homozygous dominant<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">8.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">In pea flowers, the allele for red petal colour (R) is dominant to that for white petal colour (r). A cross between two plants produced offspring with a phenotype ratio of 3 red petals: 1 white petals. What were the genotypes of the parents?<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">RR x rr<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Rr x rr<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Rr x RR<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Rr x Rr<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">9.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">In pea flowers, the allele for red petal colour (R) is dominant to that for white petal colour (r). If the cross RR x Rr is carried out, what will be the phenotype ratio of the offspring<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">3 red petals: 1 white petals<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">All red petals<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">1 red petals : 1 white petals<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">All white petals<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">10.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">The family tree shows the inheritance of albinism in a family. It is a recessive condition involving lack of pigment in the skin, eyes and hair. <\/span><\/p>\n<table border=\"0\" cellpadding=\"3\" width=\"100%\">\n<tbody>\n<tr>\n<td><img decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/\/uploads\/quiz\/mediarep171446\/7_3_6.jpg\" alt=\"\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">2<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">3<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">4<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">9<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">11.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">The family tree shows the inheritance of albinism in a family. It is a recessive condition involving lack of pigment in the skin, eyes and hair. Individual 8 has<\/span><\/p>\n<table border=\"0\" cellpadding=\"3\" width=\"100%\">\n<tbody>\n<tr>\n<td><img decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/\/uploads\/quiz\/mediarep171446\/7_3_7.jpg\" alt=\"\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">two normal alleles<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">the same alleles as his father<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">one normal and one recessive allele<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">two recessive alleles<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">12.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">The family tree shows the inheritance of albinism in a family. It is a recessive condition involving lack of pigment in the skin, eyes and hair. The genotypes of which individuals can be identified from their phenotype?<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">2, 6, 8<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">2, 3, 11<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">5, 7, 9<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">2, 1, 12<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">13.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Achoo syndrome is a dominant characteristic in humans which causes the sufferer to sneeze when they look at light. A woman who is homozygous for Achoo syndrome and a man who is unaffected have children. What proportion of their children would be expected to have Achoo syndrome?<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">0%<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">25%<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">50%<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">100%<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">14.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A pure-breeding male black mouse is mated with a female brown mouse and they produce a litter of 12. The allele for black fur is dominant to the allele to brown fur. What is the expected distribution of colour and sex in their litter? <\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">6 brown females and 6 black males<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">9 black and 3 brown, all male<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">6 black males and 6 black females<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">12 black males<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">15.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A male heterozygous black mouse is mated with a female heterozygous black mouse and the litter consists of 12 pups. B is the allele for the black colour. The allele for brown colour is b. The dominant allele is B. Which of these ratios is closest to the expected ratio for the distribution of colour among the offspring? <\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">All black<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">6 black and 6 brown<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">4 black and eight brown<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">8 black and 4 brown<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">16.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">In dogs, L is the allele for long hair and l is the allele for short hair. B is the allele for black hair and b is the allele for white hair. S is the allele for straight hair and s is the allele for curly hair. What will be the phenotype for a small dog with the genotype LLBbss? <\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Long, white, straight fur<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Long, black, curly fur<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Long, white, curly fur<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Short, black, straight fur<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">17.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Cystic fibrosis is an inherited condition caused by a recessive allele. The diagram below shows a family tree with affected individuals.<\/span><\/p>\n<table border=\"0\" cellpadding=\"3\" width=\"100%\">\n<tbody>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/\/uploads\/quiz\/mediarep171446\/H2010MCQ13.jpg\" alt=\"\" width=\"315\" height=\"310\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">3 and 5<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">4 and 6<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">1 and 2<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">2 and 6<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">18.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Cystic fibrosis is a genetic condition caused by a single gene mutation. A child is born with cystic fibrosis despite neither parent having the condition. The parents are going to have a second child. What is the chance that the second child will have cystic fibrosis?<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">75%<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">67%<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">50%<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">25%<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">19.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">In rabbits, black fur (B) is dominant to brown fur (b). If a true-breeding black rabbit mates with a brown rabbit, their offspring will be: <\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Homozygous and black<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Heterozygous and black<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Homozygous and brown<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Heterozygous and brown<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td height=\"80\" valign=\"bottom\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td height=\"2\" bgcolor=\"#999999\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"100%\" bgcolor=\"#ffffff\">\n<tbody>\n<tr>\n<td valign=\"top\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/spacer.gif\" alt=\"\" width=\"1\" height=\"1\" \/><\/td>\n<td colspan=\"2\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"1%\" valign=\"top\"><em><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">20.<\/span><\/em><\/td>\n<td colspan=\"2\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">In humans, the allele for blood group A is dominant to the allele for blood group O. Two parents both have blood group A. Their child has blood group O. What is the best explanation for this pattern of inheritance? <\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">A.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">The child has inherited the blood group directly from a grandparent<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">B.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">The parents are homozygous for the blood group alleles<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">C.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">The parents are heterozygous for the blood group alleles<\/span><\/td>\n<\/tr>\n<tr bgcolor=\"#eeeeee\">\n<td width=\"1%\" align=\"right\" valign=\"top\">\u00a0<\/td>\n<td width=\"1%\" valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">D.<\/span><\/td>\n<td valign=\"top\"><span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">There has been a mutation in the blood group alleles<\/span><\/td>\n<\/tr>\n<tr valign=\"middle\" bgcolor=\"#eeeeee\">\n<td align=\"right\">\u00a0<\/td>\n<td colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/quizstar.4teachers.org\/images\/flag.gif\" alt=\"check the box to the left to flag this question\" width=\"15\" height=\"15\" align=\"absMiddle\" \/> <span style=\"font-family: Verdana, Arial, Helvetica, sans-serif\">Flag this question for later review<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>1. In pea plants, the allele for pink flower petals (P) is dominant to that for white flowers (p). A true breeding pink-flowered plant is crossed with a true breeding white flowered plant and the plants of the F1 generation are self-crossed. In the F1 generation \u00a0 \u00a0 A. all of the plants will have &hellip; <a href=\"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u3hwrk\/mcq-3_5d-hwrk\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">MCQ 3_5D Hwrk<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2454,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-119","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u3hwrk\/wp-json\/wp\/v2\/pages\/119","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u3hwrk\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u3hwrk\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u3hwrk\/wp-json\/wp\/v2\/users\/2454"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u3hwrk\/wp-json\/wp\/v2\/comments?post=119"}],"version-history":[{"count":2,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u3hwrk\/wp-json\/wp\/v2\/pages\/119\/revisions"}],"predecessor-version":[{"id":142,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u3hwrk\/wp-json\/wp\/v2\/pages\/119\/revisions\/142"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u3hwrk\/wp-json\/wp\/v2\/media?parent=119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}