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A prezygotic isolating mechanism prevents successful ______. - Biology (Theory)

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Question

A prezygotic isolating mechanism prevents successful ______.

Options

  • gamete production

  • fertilization

  • zygote development

  • reproduction of hybrids

MCQ
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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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Chapter 8: Evidences and Theories of Biological Evolution - TEST YOUR PROGRESS [Page 344]

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Nootan Biology [English] Class 12 ISC
Chapter 8 Evidences and Theories of Biological Evolution
TEST YOUR PROGRESS | Q 1. 88. | Page 344
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