Consider a Locus with Two Alleles in an Island Population

question 17

Multiple Choice

Consider a locus with two alleles in an island population, where all assumptions of the Hardy-Weinberg model are met except "no migration." The figure shows the change in the frequency of the A₁ allele over several generations. What can you say about the population that is the source of migrants to the island?

• A) The rate of migration in the source population is higher than in the island population.
• B) The source population has a higher frequency of the A₁ allele at generation zero than the island population.
• C) Selection on the A₁ allele is stronger in the island population than it is in the source population.
• D) The A₁ allele is under balancing selection in the source population.

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