Hardy-Weinberg Law

Theorem

Let $A$ and $a$ be alleles.

Let $A$ and $a$ occur in a population in proportions $p$ and $q = 1 - p$.

Then after one generation of random mating, the genotypes $AA$, $Aa$ and $aa$ are in proportions $p^2$, $2 p q$ and $q^2$.

Proof

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