 Panmixia

Panmixia is random mating within a breeding biological population, without systematic choice by genotype or phenotype. In a homogeneous genetic model it makes the two parental gamete draws independent, yielding the Hardy-Weinberg equilibrium genotype probabilities $p_i^2$ and $2p_i{p}_j$. It is a modelling assumption; assortative mating and population stratification are distinct ways a biological population can depart from it.

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