Multiple choice

Genetic drift operates in

  1. small population

  2. large population

  3. island population

  4. mendelian population
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A Correct answer
Explanation

Genetic drift is a random change in allele frequencies that has its most pronounced effects in small populations where chance events can significantly alter the genetic composition from one generation to the next. In large populations, random fluctuations tend to average out, but in small populations, drift can lead to fixation or loss of alleles regardless of their selective advantage.

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