Identical population splitting events occurred simultaneously on two neighboring islands, B and C, producing subpopulations B1 and B2, and C1 and C2. We do the same sampling scheme to analyze B1 and B2, and C1 and C2
We find that B1 and B2 are reproductively
isolated from each other after 50,000 years, and that C1 and C2 are still interfertile after
100,000 years. Why does reproductive isolation arrive at different rates on these three
islands?
What will be an ideal response?
Answers will vary.
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