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What is genetic drift?


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Solution

Genetic drift:

  1. Genetic drift is the random variation in the frequency of an existing gene variant in a population.
  2. Gene variations may vanish altogether due to genetic drift, reducing genetic variation.

Importance of genetic drift:

  1. Through the help of genetic drift, a smaller amount of alleles can be brought into larger populations.
  2. Genetic drift can also cause a new population to be genetically different from its parent population, leading to the theory that genetic drift is involved in the evolution of new species.

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