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How does genetic drift produce id genetic bottleneck?

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Question

How does genetic drift produce id genetic bottleneck?

Short Answer
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Solution

 A bottleneck occurs when a chance event sharply reduces population size. The few survivors carry only a random sample of the original gene pool; when they reproduce, allele frequencies may differ substantially and genetic variation may be lost.

Thus the bottleneck produces genetic drift.

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Chapter 9: Theory of Evolution and Evolution of Man - EXERCISES [Page 526]

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Sarita Aggarwal Biology [English] Class 12 ISC
Chapter 9 Theory of Evolution and Evolution of Man
EXERCISES | Q V. 6. (ii) | Page 526
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