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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
- Reticulate venation in leaves is the characteristic feature of dicot plants
- Which of the following is the most dangerous metal pollutant of automobile exhause
- A patient brought to a hospital with myocardial infarction is normally immediately given
- If a person has lost his memory in an accident the following part of the brain
- Alcoholic fermentation takes place in the presence of
Topics: Evolution (132)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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