# Drummond:PopGen

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==Notes on population genetics== Let [itex]n[/itex] be the number of organisms of type [itex]i[/itex] at time [itex]t[/itex].
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==Notes on population genetics== ==Notes on population genetics== - Let + Let [itex]n_i(t)[/itex] be the number of organisms of type [itex]i[/itex] at time [itex]t[/itex], and let [itex]R[/itex] be the per-capita reproductive rate per generation. If [itex]t[/itex] counts generations, then - [itex]n[/itex] + [itex]n_i(t+1) = n_i(t)R[/itex] and - be the number of organisms of type [itex]i[/itex] at time [itex]t[/itex]. + [itex]n_i(t) = n_i(0)R^t[/itex]
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## Notes on population genetics

Let ni(t) be the number of organisms of type i at time t, and let R be the per-capita reproductive rate per generation. If t counts generations, then ni(t + 1) = ni(t)R and ni(t) = ni(0)Rt