Question

How to find the no .of homozygous individuals in population by using hardy winberg law?

Answer 1

An individual in a diploid population which reproduces sexually is the result of one male gamete plus one female gamete being combined to form a zygote. If the mating is random, the proportions of genes in the gametes will determine the proportion of genotypes in the population. Therefore, genotype proportions in our simple 2 allele situation should be expressed by squaring the sum of the allele proportions in a simple binomial as follows:

(p + q)2 = p2 + 2pq + q2 = 1

AA homozygous dominant individuals = p2

Aa heterozygous individuals = 2 pq

aa homozygous recessive individuals = q2