Imagine an Island Archipelago Where All of the Islands Are

question 31

Multiple Choice

Imagine an island archipelago where all of the islands are founded by individuals heterozygous at a particular locus. If there is no migration or mutation, and the alleles at that locus are neutral, what do you expect the island populations to look like after many generations?

• A) Some island populations will have fixed one allele, and other populations will have fixed the other allele.
• B) The populations on every island will have fixed the same allele.
• C) The island populations will have high levels of genetic diversity at this locus.
• D) We cannot predict any outcome because genetic drift is a random process.

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