ANTH 1001 Lecture : ANTH 1001 Fall 2012 Notes For Discussions On September 18 And 20
Document Summary
Summary notes for anth 1001: relationship between genotype and phenotype. A. categorization of phenotypes: traits showing discontinuous variation inheritance involving one gene, traits showing continuous variation, inheritance involving polygeny b. 1. Definition: polygeny two or more genes interacting to influence a phenotype: # genotypes = {[(a) x (a+1)]/2}g, where: a = number of alleles for a gene; g = number of genes in a polygenic trait. Formula for calculating number of genotypes for a polygenic trait. C. implication of h-w theorem one or more of the five assumptions are never fulfilled. Therefore, evolution is always occurring every population in every species is evolving in every generation. Page 1 of 4: nonrandom mating will change genotypic frequencies but not allelic frequencies; Violation of assumptions b through e will change both allelic and genotypic frequencies. That is, nonrandom mating is not a force of evolution; rather, the forces of evolution are the converse of the latter four assumptions.
