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Random unidirectional change in allele frequencies that occurs by chance in all populations and especially in small populations is known as
Options
(a) Mutation
(b) Migration
(c) Natural selection
(d) Genetic drift
Correct Answer:
Genetic drift
Explanation:
Genetic drift is random change in allele number and frequency in a gene pool due to chance (eg., small size of population). It is caused by sampling error or error in gene pool sample that is to form the next generation. The sampling gene pool is generally small in size. Variability is also limited.
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Topics: Evolution
(132)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Select the correct match of the digested products in humans given in column-I
- In photosynthesis energy from light reaction to dark reaction is transferred
- A scrubber in the exhaust of a chemical industrial plant removes:
- Hormone produced against allergic reaction is
- What does the following indicate ? Parent R¹R¹(Red) × R²R²(White)
Topics: Evolution (132)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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