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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: - Palisade parenchyma is absent in leaves of:
- The overall goal of glycolysis, kerbs cycle and the electron transport system
- During anerobic respiration in plant, sucrose is converted into
- Growth is
- What is true about ribosomes
Topics: Evolution
(132)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Palisade parenchyma is absent in leaves of:
- The overall goal of glycolysis, kerbs cycle and the electron transport system
- During anerobic respiration in plant, sucrose is converted into
- Growth is
- What is true about ribosomes
Topics: Evolution (132)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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