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Which of these is an example of gene flow?

A) German immigrants settle in a colony in Eastern Pennsylvania without mixing with the locals.
B) A few black sparrows join a population of brown sparrows and mate with them.
C) Indiscriminate hunting reduces the blue whale population, which later revives.

User Otuyh
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2 Answers

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The answer is B because I just got 5/5 on the test

User Delta George
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I think the correct answer from the choices listed above is option A. An example of gene flow would be that German immigrants settle in a colony in Eastern Pennsylvania without mixing with the locals. Gene flow is the movement of individuals from one population to another. It is also called migration.
User Zanchey
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