BIOL107 Lecture Notes - Lecture 13: Northern Canada, Human Migration, Population Genetics

• School: University of Alberta
• Department: Biology (Biological Sciences)
• Course: BIOL107
• Professor: Lesley Harrington

Document Summary

America and native america; the a-allele is very uncommon in. If both alleles are equally abundant in the population, they will both be 0. 5: calculating p, q, by observation of genotypes (may be inferred from phenotype) e. g. aa. We double the number of alleles so we multiply our total individuals by 2 (# of alleles = pop # x 2) This is the frequency of the alleles in the. Knowing allele frequencies alone does not tell you anything about the population structure, or fitness advantage/disadvantage of various alleles e. g. each of these populations each has p=0. 8, q=0. 2. Hwe is aa =640 , aa= 320, aa=40, so only #1 is in hwe. A(0. 5) x a(0. 5) x 2 should be the aa (0. 25 x 2 = 0. 5) We can use hwp to calculate the genotypic frequencies based on our allelic frequencies; 1 = p+q 1= (p+q)2 1 = p2 + 2pq + q2.