Multiple choice

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

  1. selection pressure

  2. speciation

  3. adaptation

  4. genetic drift
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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 form population. 

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