Multiple choice

There is a population of brown and green beetles. By chance, a person steps on the green beetles and all the green beetles die. The situation explains the phenomenon of

  1. natural selection

  2. genetic drift

  3. artificial selection

  4. fossilisation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 Genetic drift describes random fluctuations in the numbers of gene variants in a population.

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