Question

In a Hardy-Weinberg equation, the frequency of the heterozygous individuals is represented by

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

Answer 1

The correct option is B $2pq$

The Hardy-Weinberg equation is an algebraic equation which is an expression of the Hardy-Weinberg principle.
In the Hardy weinberg equation, $p^2+2pq+q^2=1$,
$p^2$ represents the frequency of homozygous dominant individuals
$q^2$ represents the frequency of homozygous recessive individuals
2pq represents the frequency of heterozygous dominant individuals

Hence, the frequency of the heterozygous individuals is represented by 2pq.