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Question

Which mechanism of evolution affects genetic make up of a population?

A
Natural selection
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B
Adaptation
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C
Genetic drift
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D
Gene mutation
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Solution

The correct option is C Genetic drift
  • When the frequency of some genes gets changed in a small population due to some accidental reasons, such phenomenon is known as Genetic Drift.
  • It gives rise to genetic changes in sub-populations leading to changes in it's makeup. It is random and rarely produces adaptations to the environment.
So, the correct answer is 'Genetic drift'

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