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

  1. A
    Genetic flow
  2. B
    Genetic drift
  3. C
    Random mating
  4. D
    Genetic load

Solution & Step-by-step Explanation

Genetic drift refers to the random fluctuations in allele frequencies in a population due to chance events, particularly in small populations. It is distinct from natural selection, which is driven by fitness.

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Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as:
A
Genetic flow
B
Genetic drift
C
Random mating
D
Genetic load

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