Calculate the frequencies of the A allele in population II before and after migr

Question

Calculate the frequencies of the A allele in population II before and after migration.

In the figure below, each blue dot represents one copy of the A allele and each red dot represents one copy of the a allele Population I f(a)q Calculate the frequencies of the A allele in population l before and after migration. Population II f(a)q Before migration Number a allele A allele Migration fa)-g Population Il a)- after migration After migration Number Migrants from population (m) population l (1 m) The frequency of allele a in popula Residents from Continued below... ll after migration is q91.-ql m + qll (1-m).

Explanation / Answer

The frequency of A in population II before migration was 5/40 = 0.125 . After migration, the frequency is 9/45 = 0.2 . The frequency of A increased because some individuals migrated from population I to population II, and population I has a much higher frequency of A (35/40 = 0.875), so a higher proportion of the A allele was present in population II after migration

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