Question

A heterozygous individual according to Hardy-Weinberg theory is represented by

• A. p
• B. p${}^2$
• C. 2pq
• D. q${}^2$
• E. q

Answer 1

The correct option is C 2pq

According to Hardy-Weinberg theory, p is the frequency of the "A" allele and q is the frequency of the "a" allele in the population. Thus, $p^2$ represents the frequency of the homozygous dominant genotype, $q^2$ is the frequency of the homozygous recessive genotype, and 2pq represents the frequency of the heterozygous genotype. Thus, the correct answer is option C.