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Question
In allopatric speciation the initial barrier to gene flow is ______.
Options
geographic
ecological
behavioural
postzygotic
MCQ
Fill in the Blanks
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Solution
In allopatric speciation the initial barrier to gene flow is geographic.
Explanation:
In allopatric speciation, the initial barrier to gene flow between populations is geographic isolation. This physical separation prevents interbreeding, allowing genetic differences to accumulate and eventually leading to the formation of new species.
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