LIFESCI 3C03 Chapter Notes - Chapter 6: Kin Selection, Life Insurance, Meiosis
10 Feb 2017
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The goal of selfish genes is to become more numerous in the gene pool. A gene might be able to assist replicas of itself that are sitting in other bodies. 1/20,000 people require two genes for albinism to show the phenotype. 1/70 people who have two copies of the albinism allele are not albinos. If the albino gene could make one of its bodies save the lives of 10 of its bodies, altruism would ultimately be beneficial. If a gene causes altruistic behaviour toward other individuals who share the gene, it will be perpetuated in the population. The ge(cid:374)e does(cid:374)"t (cid:862)(cid:449)a(cid:374)t(cid:863) to help other i(cid:374)di(cid:448)iduals, (cid:271)ut if it (cid:272)odes for altruisti(cid:272) (cid:271)eha(cid:448)iour, it will be passed on and its future carriers will be altruistic as well, and so on. This gene would have multiple effects: confer a trait, confer a tendency to be selectively altruistic toward other individuals who share the trait.
