Initially, which of the following isolating mechanisms is likely to have been the most important in preventing gene flow between the two populations of Rhagoletis?

Initially, which of the following isolating mechanisms is likely to have been the most important in preventing gene flow between the two populations of Rhagoletis?




A) Gamete incompatibility
B) Temporal isolation
C) Mechanical isolation
D) Reduced hybrid viability


Answer: B) Temporal isolation


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AP Biology

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