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Evolution question

2013 · Q64
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Evolution question

2013 · Q64

NEETBiologyEvolutionMCQ+4 / −1
Random undirectional change in allele frequencies that occur by chance in all populations and especially in small populations is known as :-
  1. A
    Genetic drift
  2. B
    Migration
  3. C
    Mutation
  4. D
    Natural selection
View written solutionFree

Correct answer: A

Genetic drift is random change in allele number and frequency in a gene pool due to chance (e.g., 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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