Host Tree Specificity of Rhagoletis Pomonella Reduces Gene Flow Between

question 9

Multiple Choice

Host tree specificity of Rhagoletis pomonella reduces gene flow between the apple and hawthorn fly races by 4% to 6% in each generation, as individuals tend to mate with the same fruit preference. This is an example of

• A) allopatric speciation.
• B) assortative mating.
• C) secondary contact.
• D) resource competition.

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