Biology & Life Sciences
Intermediate

Hardy-Weinberg Equilibrium

Genotype frequencies in a non-evolving population.

Formula

p2+2pq+q2=1p^2 + 2pq + q^2 = 1

Variables

pDominant allele freq
qRecessive allele freq

Example

q=0.1 ⇒ 2pq=0.18

Did You Know?

The Hardy-Weinberg principle gives the baseline of a non-evolving population, so deviations reveal evolution at work.

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