NEET 2013 Biology question

Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as :

(1)Genetic flow
(2)Genetic driftCorrect
(3)Random mating
(4)Genetic load

Answer: (2)

Solution

Genetic drift is the random change in allele frequencies of a small population purely by chance (sampling error), independent of natural selection; it may lead to the founder effect. Gene (genetic) flow is

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Question ID VK-091415