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

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Question

A postzygotic isolating mechanism prevents successful ______.

Options

  • gamete production

  • courtship

  • fertilization

  • survival or reproduction of the hybrid

MCQ
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Solution

A postzygotic isolating mechanism prevents successful survival or reproduction of the hybrid.

Explanation:

A postzygotic isolating mechanism prevents the survival or reproduction of hybrid offspring resulting from mating between different species. This type of isolating barrier occurs after fertilization and zygote formation, ensuring that even if different species mate, the resulting hybrids are either inviable or sterile and cannot reproduce successfully.

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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. 89. | Page 344
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