Hardy-Weinberg equilibrium

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Food Biotechnology

The frequencies of genotypes at a locus resulting from random mating at that locus; for two alleles, A₁ and A₂, with respective frequencies in a population of p and q, the Hardy-Weinberg equilibrium frequencies are p² A₁A₁; 2pq A₁A₂; q² A₂A₂. Departure from these frequencies is an indication that random mating is not occurring.

UN Food and Agriculture Organization — Glossary of Biotechnology for Food and Agriculture