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Genetic Drift for a lung gas exchange

Built for researchers prototyping or validating an idea. Prototype fast, reproduce exactly, and share a citable, interactive version of your model. Simulate a lung gas exchange live below — adjust the inputs and watch it respond, right in your browser.

Genetic Drift (Wright-Fisher)Live

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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.

▶ Run in Python

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 researchers?
Yes — this version of "Genetic Drift for a lung gas exchange" is framed for researchers prototyping or validating an idea. Prototype fast, reproduce exactly, and share a citable, interactive version of your model.
Do I need to install anything?
No. It runs in any modern browser, free, with no account required.