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Question
A prezygotic isolating mechanism prevents successful ______.
Options
gamete production
fertilization
zygote development
reproduction of hybrids
MCQ
Fill in the Blanks
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Solution
A prezygotic isolating mechanism prevents successful zygote development.
Explanation:
Some textbooks classify isolating mechanisms that act after mating but before a viable zygote forms as prezygotic. In such cases, sperm may enter but the zygote fails to develop, so no successful zygote is formed.
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