{"id":255,"date":"2014-10-16T10:17:09","date_gmt":"2014-10-16T10:17:09","guid":{"rendered":"http:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/?page_id=255"},"modified":"2014-12-08T11:34:42","modified_gmt":"2014-12-08T11:34:42","slug":"mcq-1_4b-mrna-proteins","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/mcq-1_4b-mrna-proteins\/","title":{"rendered":"MCQ 1_4B mRNA & Proteins"},"content":{"rendered":"

Marking Guide<\/a><\/p>\n\n\n\n\n\n\n\n
1.<\/strong><\/span><\/td>\nDNA molecules isolated from a rat cell and a human cell are found to differ in the<\/span> \u00a0<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\norder of their bases<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nthe type of bases they contain<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nthe type of sugar the DNA is made with<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nthe order of the phosphate groups<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
2.<\/strong><\/span><\/td>\nIf a DNA molecule contains 10,000 bases, of which 18% are thymine (T), then the number of cytosine (C) molecules present would be<\/span> \u00a0<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\n1800<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\n3200<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\n6400<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\n8200<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
3.<\/strong><\/span><\/td>\nIf a DNA molecule contains 4000 bases and 1200 of these are adenine (A), then the percentage of the bases which woudlbe guanine (G) would be<\/span> \u00a0<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\n12<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\n20<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\n28<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\n30<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
4.<\/strong><\/span><\/td>\nAn mRNA template is <\/span>\u00a0<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\ncopied from protein<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\ntranslated by protein<\/span><\/td>\n<\/tr>\n
\"\" <\/a><\/td>\nC.<\/span><\/td>\ncopied from DNA<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\ntranslated by DNA<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
5.<\/strong><\/span><\/td>\nWhat molecule controls the order in which amino acids are added to a growing protein?<\/span> \u00a0<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nDNA molecules<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nmRNA molecules<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\namino acids<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nribosomes<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nE.<\/span><\/td>\nmitochondria<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
6.<\/strong><\/span><\/td>\nA fragment of DNA was found to have 120 guanine bases and 60 adenine bases. What is the total number of sugar molecules in this fragment?<\/span> \u00a0<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\n60<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\n90<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\n180<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\n360<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
7.<\/strong><\/span><\/td>\nThe model of DNA used today was proposed by James Watson and Francis Crick in 1953. In this model, what sequence of bases would be complementary to A-G-C-T-A?<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nA-G-C-T-A<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nC-G-C-A-T<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nA-T-C-G-A<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nT-C-G-A-T<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
8.<\/strong><\/span><\/td>\nThe diagram below shows part of a DNA molecule during replication. Identify part X<\/span><\/p>\n\n\n\n\n
\"\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nbase<\/span><\/td>\n\"\"<\/a><\/td>\nB.<\/span><\/td>\nphosphate<\/span><\/td>\n\"\"<\/a><\/td>\nC.<\/span><\/td>\nsugar<\/span><\/td>\n\"\"<\/a><\/td>\nD.<\/span><\/td>\nnucleotide<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
9.<\/strong><\/span><\/td>\nThe diagram below shows part of a DNA molecule during replication. Name base 1<\/span><\/p>\n\n\n\n\n
\"\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nA (adenine)<\/span><\/td>\n\"\"<\/a><\/td>\nB.<\/span><\/td>\nT (thymine)<\/span><\/td>\n\"\"<\/a><\/td>\nC.<\/span><\/td>\nG (guanine)<\/span><\/td>\n\"\"<\/a><\/td>\nD.<\/span><\/td>\nC (cytosine)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
10.<\/strong><\/span><\/td>\nThe diagram shows DNA during replication. Base H represents thymine and base M represents guanine. Which letters represent the base cytosine?<\/span><\/p>\n\n\n\n\n
\"\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nJ and K<\/span><\/td>\n\"\"<\/a><\/td>\nB.<\/span><\/td>\nJ and L<\/span><\/td>\n\"\"<\/a><\/td>\nC.<\/span><\/td>\nN and P<\/span><\/td>\n\"\"<\/a><\/td>\nD.<\/span><\/td>\nN and R<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
11.<\/strong><\/span><\/td>\nA section of a DNA molecule contains 300 bases. Of these bases, 90 are adenine. How many cytosine bases would this section of DNA contain?<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\n60<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\n90<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\n120<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\n180<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
12.<\/strong><\/span><\/td>\nTissue samples taken from the heart and stomach of a grasshopper would be expected to have the same \u2014<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\ncell shape<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\ncell size<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nmRNA<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nDNA<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
13.<\/strong><\/span><\/td>\nAmino acids link together by peptide bonds to form proteins. In which part of the cell would this process occur<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nMitochondrion<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nRibosome<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nNucleus<\/span><\/td>\n<\/tr>\n
\u00a0<\/td>\nD.<\/span><\/td>\nChloroplast<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
14.<\/strong><\/span><\/td>\nWhich of these is most responsible for carrying coded information from the nucleus?<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nThe cell membrane<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nThe ribosomes<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nmRNA<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nDNA<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
15.<\/strong><\/span><\/td>\nProteins are formed from monomers (subunits) called \u2014<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\namino acids<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nphospholipids<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nsugars<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nnucelotides<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
16.<\/strong><\/span><\/td>\nA cell with numerous ribosomes is probably specialized for \u2014<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nenzyme storage<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nenergy production<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\ncell division<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nprotein synthesis<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
17.<\/strong><\/span><\/td>\nThe parts of DNA that provide the code for proteins are the \u2014<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nsugars<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nphosphates<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nweak bonds<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nbases<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
18.<\/span><\/em><\/td>\nWhich cell structure contains information needed for protein synthesis?<\/span><\/p>\n\n\n\n\n
\"\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\n1<\/span><\/td>\n\"\"<\/a><\/td>\nB.<\/span><\/td>\n2<\/span><\/td>\n\"\"<\/a><\/td>\nC.<\/span><\/td>\n3<\/span><\/td>\n\"\"<\/a><\/td>\nD.<\/span><\/td>\n4<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
19.<\/strong><\/span><\/td>\nWhich sequence best represents the relationship between DNA and the characteristics or traits of an organism?<\/span><\/p>\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
\u00a0<\/td>\n\u00a0<\/td>\n\"\"<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\"\"<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\"\"<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\"\"<\/td>\n<\/tr>\n
\u00a0<\/td>\n\u00a0<\/span>A.<\/span><\/td>\n\"\"<\/a><\/span><\/td>\n\u00a0<\/td>\n\u00a0<\/span>B.<\/span><\/td>\n\"\"<\/a><\/span><\/td>\n\u00a0<\/td>\n\u00a0<\/span>C.<\/span><\/td>\n\"\"<\/a><\/span><\/td>\n\u00a0<\/td>\n\u00a0<\/span>D.<\/span><\/td>\n\"\"<\/a><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
20.<\/strong><\/span><\/td>\nThymine is used by animal cells primarily for the synthesis of DNA. <\/span>A group of sea urchin eggs was fertilized in sea water containing radioactive thymine. <\/span>Following fertilisation, samples of embryos were removed at regular intervals and the radioactivity in the nucleic acid was measured in counts per minute. The results obtained are shown in the figure below.<\/span><\/p>\n\n\n\n\n\n
\"\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

An appropriate control to show that this experiment measures DNA synthesis and not RNA synthesis would be to perform the same procedures but<\/td>\n<\/tr>\n

\"\"<\/a><\/td>\nA.<\/span><\/td>\nnot fertilise the eggs<\/span><\/td>\n\"\"<\/a><\/td>\nB.<\/span><\/td>\nsample the embryos at longer time intervals<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nadd radioactive uracil instead of radioactive thymine<\/span><\/td>\n\"\"<\/a><\/td>\nD.<\/span><\/td>\nfertilize the eggs in sea water that does not contain radioactive thymine<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n
21.<\/strong><\/span><\/td>\nProteins have different functions. Which of the following statements identifies a protein <\/strong>and its function?<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nHormones carry oxygen around the body.<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nEnzymes carry chemical messages around the body.<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\n\n
Antibodies defend the body against disease.\u00a0<\/span><\/div>\n<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\n\n
Cellulose provides strength and structure to a plant cell wall.\u00a0<\/span><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Marking Guide 1. DNA molecules isolated from a rat cell and a human cell are found to differ in the \u00a0 A. order of their bases B. the type of bases they contain C. the type of sugar the DNA is made with D. the order of the phosphate groups \u00a0 2. If a DNA … Continue reading “MCQ 1_4B mRNA & Proteins”<\/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-255","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/pages\/255","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/users\/2454"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/comments?post=255"}],"version-history":[{"count":23,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/pages\/255\/revisions"}],"predecessor-version":[{"id":422,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/pages\/255\/revisions\/422"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/media?parent=255"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}