Genetic Drift and Population Genetic Variation Quiz
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Questions and Answers

Which of the following best describes genetic drift?

  • The change in the frequency of an existing gene variant due to natural selection
  • The change in the frequency of an existing gene variant due to genetic recombination
  • The change in the frequency of an existing gene variant due to random chance (correct)
  • The change in the frequency of an existing gene variant due to mutation
  • What is the potential outcome of genetic drift?

  • Increase in genetic variation
  • Increase in natural selection
  • Increase in mutation rate
  • Decrease in genetic variation (correct)
  • When does the effect of genetic drift become more notable?

  • When mutation rate is high
  • When few copies of an allele exist (correct)
  • When many copies of an allele exist
  • When natural selection is strong
  • Who held the view that genetic drift plays at most a minor role in evolution?

    <p>Ronald Fisher</p> Signup and view all the answers

    In the middle of the 20th century, what was the dominant view regarding the importance of genetic drift in evolution?

    <p>It plays a minor role in evolution</p> Signup and view all the answers

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