In this equation p2 + 2pq + q2 = 1, what does the term 2pq represent?
A) The genotype frequency of homozygous recessive individuals
B) The genotype frequency of homozygous dominant individuals
C) The genotype frequency of heterozygous individuals
D) The sum of the phenotype frequencies in the population

Question

Quizplus · Accepted Answer

2pq represents the genotype frequency of heterozygous individuals in a population according to the Hardy-Weinberg equilibrium equation. This means that the fraction of the population that carries one dominant and one recessive allele for a given trait is equal to 2pq. The other terms in the equation represent the frequencies of homozygous dominant (p^2) and homozygous recessive (q^2) genotypes.

In This Equation P2 + 2pq + Q2 = 1