For First Responders · Genetic Drift
Genetic Drift for a vaccine rollout
Built for first responders planning or training for real incidents. Run fast what-if scenarios for response planning and training — no software to install in the field. Simulate a vaccine rollout live below — adjust the inputs and watch it respond, right in your browser.
Genetic Drift (Wright-Fisher)Live
chance changes allele frequencies
Controls
Presets
Even with no selection, allele frequencies wander purely by chance as each generation is randomly sampled from the last. In small populations this genetic drift is fast and alleles quickly fix or vanish; in large populations it is slow. Each colored line is an independent population starting from the same frequency.
Data Inspector
Fixed (reached 1)0
Lost (reached 0)0
Population size50
Governing equation
Reading this result: Over many replicates the fraction that fix an allele converges on its starting frequency p₀=0.5 — drift is directionless, but the odds of fixation equal where you began.
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
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Frequently asked questions
- Is this good for first responders?
- Yes — this version of "Genetic Drift for a vaccine rollout" is framed for first responders planning or training for real incidents. Run fast what-if scenarios for response planning and training — no software to install in the field.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.