The Hardy-Weinberg principle's equation for genotype frequencies is:

Question

Accepted Answer

B. $p^2 + 2pq + q^2 = 1$ (genotype freq.)

**Hardy-Weinberg:** if p = freq of allele A and q = freq of allele a
then p² + 2pq + q² = 1 gives genotype freq (p² for AA, 2pq for Aa, q² for aa).
p + q = 1 is the allele-freq constraint.

Answer

$p + q = 1$ (allele frequency sum)

Answer

$p^2 - q^2 = 1$ (difference)

Answer

$p + 2pq + q = 1$ (mixed sum)

The Hardy-Weinberg principle's equation for genotype frequencies is:

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