Drift Simulator | Breeder Bunnies

Genetic Drift Simulator

Simulates random allele frequency change using a Wright–Fisher model. This version keeps the app Yola-compatible and uses an internal table scrollbar so users can move across every calculation column.

Drift model: X ~ Binomial(2N, p)
Expected A alleles: E[X] = 2Np | Variance: Var(X) = 2Np(1 − p)
p(next) = X / 2N

Inputs

p (allele A frequency) q (allele a frequency, optional) Population Size (N) Generations Seed Random draws to preview per generation

Enter values and run the simulation.

Each generation samples 2N allele copies. A random draw less than p is counted as allele A. The sampled A count becomes p(next).

Results

Starting p —

Starting q —

2N —

Seed Used —

Final p —

Final q —

Final p(next) —

Generations Displayed —

Interpretation —

Use the horizontal scrollbar below to see columns after q², including E[A next], variance, sampled A, p(next), and random draw preview.

Gen	p	q	A count	a count	p²	2pq	q²	2N	E[A next]	Var[A next]	SD[A next]	Sampled A	Sampled a	p(next)	Random draw preview
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