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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
- Generally epiderms is single layered but in certain leaves,multilayered upper
- The cells lining the blood vessels belong to the category of:
- Both RBC and WBC are formed in the
- The algal component of foliose lichen is termed as
- Names of Schleiden and Schwann are associated with
Topics: Evolution (132)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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