A trait has two alleles represented by p and q if p 0.22 what is q

q=0,78

To calculate the frequency of the allele we use the Hardy-Weinberg equation. The Hardy-Weinberg equation is used to calculate the genetic variation of a population at equilibrium. If the alleles are A and a, p is the frequency of the allele A and q is the frequency of the allele a. Hardy-Weinberg equation for alleles A and a:

p² + 2pq + q² = 1

p² is the frequency of the homozygous genotype AA, 2pq is the frequency of the heterozygous genotype Aa and q² is the frequency of the homozygous genotype aa.

p²+2pq+q² = (p+q) ²=1

p+q=1

If p=0,22 q=1-0,22=0,78