BIOB51H3 Lecture Notes - Lecture 14: Genotype Frequency, Allele Frequency, Zygosity
Document Summary
It is totall(cid:455) (cid:396)a(cid:374)do(cid:373), does(cid:374)"t lead to adaptation (but can still change allele frequencies), leads to random fixation of alleles, is most powerful in small populations and also most powerful in the absence of selection. Slide 40: does(cid:374)"t (cid:272)ause e(cid:448)olutio(cid:374)a(cid:396)(cid:455) (cid:272)ha(cid:374)ge, assumes random mating which allows predictable genotype frequencies. Individuals with one particular phenotype like to mate with those with similar phenotypes as them: allele frequencies remain the same (none gained or lost, no evolutionary change. Slide 42: asso(cid:396)tati(cid:448)e: (cid:862)like (cid:373)ates (cid:449)ith like(cid:863, disassortative: individuals with different phenotypes like to mate with each other, everyone mates, but they choose their mates based on phenotypes. Slide 43: pick a pair of paired shoes that go together, assorted in different ways, ge(cid:374)ot(cid:455)pe f(cid:396)e(cid:395) (cid:272)ha(cid:374)ged (cid:271)ut allele f(cid:396)e(cid:395) does(cid:374)"t (cid:272)ha(cid:374)ge. Slide 44: all pairings of gametes are not equally likely, has strong indirect affects for evolution. Slide 45: every generation of heterozygote with heterozygote causes a loss in heterozygote freq.
