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ihatebio ihatebio
wrote...
12 years ago
A scientist tries to mate the two similar-looking fruit flies Drosophila melanogaster and Drosophila simulans. But he finds that they are unable to produce viable offspring. What kind of evolutionary barrier could this be?
A. Prezygotic
B. Postzygotic
C. Zygotic
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fireguy1fireguy1
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Posts: 101
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12 years ago
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