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Genetic Drift Simulation

Wright-Fisher Model of Random Allele Frequency Changes

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Scenarios

About Genetic Drift

Genetic drift is the random change in allele frequencies due to chance events in finite populations. The Wright-Fisher model simulates this using binomial sampling each generation.

Key concepts:

  • Smaller populations = stronger drift
  • Alleles can become fixed (p=1) or lost (p=0)
  • Heterozygosity decays at rate 1/(2N)
Generation
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Fixed (p=1)
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Lost (p=0)
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Avg Heterozygosity
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