Selecting & Breeding
(a) Plant and animal breeding by manipulation of heredity: for improved plant crops, improved animal stock, to support sustainable food production. Breeders develop improved crops and animals with higher food yields, higher nutritional values, pest and disease resistance and the ability to thrive in particular environmental conditions.
(c) Selecting and breeding. Animals and cross pollinating plants are naturally outbreeding. In inbreeding, selected plants or animals are bred for several generations until the population breeds true to the desired type due to the elimination of heterozygotes. Inbreeding depression is the accumulation of recessive, deleterious homozygous alleles. Self-pollinating plants are naturally inbreeding and less susceptible to inbreeding depression due to the elimination of deleterious alleles by natural selection. In outbreeding species inbreeding depression is avoided by selecting for the desired characteristic while maintaining an otherwise genetically diverse population.
Hi on your higher biology key area unit 3 summary notes. On key area 3.2 I think there’s been a mistake where it’s a pass paper that has been uploaded instead of the notes.
Hi, on your higher biology key area 3 summary notes on key area 3.2 Plant and Animal Breeding there’s been a past paper that been uploaded instead of the notes for the key area.