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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.
Related Questions: - Which of the following flowers only once in its lifetime
- A plant which is represented by only root. It means root performs the function
- In animal cells, the first stage of glucose breakdown is
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Topics: Evolution
(132)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following flowers only once in its lifetime
- A plant which is represented by only root. It means root performs the function
- In animal cells, the first stage of glucose breakdown is
- Geotropic response is perceived by
- Non- albuminous seed is produced in:
Topics: Evolution (132)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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