Gene frequencies of a Hardy-Weinberg equilibrium population

Question

Given

p=frequency A gene

q=frequency a gene

What are the genotypes and their ratios in a population in Hardy-Weinberg Equilibrium?

Answer 1

Hardy-Weinberg formula for a population in equilibrium is

p^2 + 2pq + q^2

Example if p=0.3 and q=0.7 what are the genotype frequencies in a population considered to be in Hardy-Weinberg equilibrium

0.3^2 + 2(.3)(.7) + .7^2 = 0.09 + 0.42 + 0.49