Biology 1002B Quiz: C8
Document Summary
Gene pool; sum of all alleles at all gene loci. 18. 2: p-frequency of one allele, q frequency of other allele. Introduces new genetic variation into population; does not change allele frequencies quickly. Change in allele frequencies as individuals join a population and reproduce. Random changes in allele frequencies caused by chance events. Reduces genetic variation, especially in small populations; can eliminate rare alleles. Differential survivorship or reproduction of individuals with different phenotypes. One allele replacing another or allelic variation being preserved. Choice of mates based on their phenotypes and genotypes. Does not directly affect allele frequencies, but usually prevents genetic equilibrium. Organisms or their genetic material may move from one population to another. Natural selection and genetic variability: hardy-wei(cid:374)(cid:271)e(cid:396)g (cid:373)odel; (cid:396)e(cid:395)ui(cid:396)e all ge(cid:374)ot(cid:455)pes i(cid:374) pop"(cid:374) to su(cid:396)(cid:448)i(cid:448)e a(cid:374)d (cid:396)ep(cid:396)odu(cid:272)e e(cid:395)uall(cid:455) well, natural selection, some traits become more advantageous in an environment and therefore increase in frequency.
