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1. Genetic Drift

   Linked via "$F_{ST}$"

   Interaction with Gene Flow
   Gene flow (migration) acts as a homogenizing force, opposing the divergent tendencies caused by drift between isolated populations. The balance between drift and migration determines the degree of genetic differentiation, quantified by measures such as $F{ST}$. In models involving migration ($m$) and genetic drift (approximated by $1/(2Ne)$), the input of alleles from a source population ($pB$) counteracts local random fluctuations. The equilibrium frequency ($\hat{p}A$) in the rec…