What Does "2pq" Represent in the Hardy-Weinberg Equation

Question

What does "2pq" represent in the Hardy-Weinberg equation?
A) homozygous recessive genotypes
B) heterozygous genotypes
C) homozygous dominant genotypes
D) heterozygous phenotypes

Accepted Answer

2pq represents the frequency of heterozygous genotypes in a population according to the Hardy-Weinberg principle, where p is the frequency of one allele and q is the frequency of the other allele.