Gujarati
6.Evolution
medium

The chance of elimination of genes from a small population is an example of

A

Selection pressure

B

Speciation

C

Adaptation

D

Genetic drift

Solution

(d)Genetic drift or Sewall Wright effect is an important mechanism in evolutionary change in small populations. In a small population not all the alleles which are representative of that species may be present. Therefore, chance events may result in the elimination of that allele from population.

Standard 12
Biology

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