In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by:

Step-by-step solution

Hardy-Weinberg principle says that the sum total of all the allelic frequencies of a gene is 1 and the possible frequencies of above mentioned genotypes, i.e., AA, aa and Aa are p 2 , q 2 and 2pq, respectively. So mathematically this statement can be written as p 2 + 2pq + q 2 = 1, where p 2 = Homozygous dominant individuals 2pq = Heterozygous individuals q 2 = Homozygous recessive individuals