ANTH 1001 Lecture Notes - Sickle-Cell Disease, Assortative Mating, Hemoglobin
Document Summary
Hardy weinberg model the probability (p x p = p^2) developed independently by godfrey hardy and wilhelm weinberg. Standard by which to measure whether a population is evolving provides and ideal non-evolving population against which we can compare natural populations. If you know the probability of an event happening, the chance of it happening twice is the square of. Consider a two allele system for height: tall allele t, short allele t in a population with a p = 30% t alleles and q = 70% t alleles, what is the probability of being: Homozygote tall tt (aka grabbing a t twice): 30% x 30% = 9% Homozygote short tt: 70% x 70% = 49% Heterozygote tall tt: 30% x 70% x 2 = 21% two different way to be heterozygous, have to multiple probability times 2 p^2 (homozygous dominant) + 2pq (heterozygous) + q^2 (homozygous recessive) = 1.
