Bottleneck Effect and Population Genetics Quiz
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Questions and Answers

Which factor contributes to the increase in frequency of beneficial alleles in a population?

  • Genetic drift
  • Mutation (correct)
  • Non-random mating
  • Gene flow
  • What is the main mechanism that consistently causes adaptive evolution?

  • Mutation
  • Genetic drift
  • Gene flow
  • Natural selection (correct)
  • What does natural selection act on to bring about adaptive evolution?

  • Phenotype (correct)
  • DNA sequence
  • Mutation rate
  • Genotype
  • Which pattern of banding represents the unbanded Lake Erie Water Snake population?

    <p>Pattern D</p> Signup and view all the answers

    Where does the Lake Erie Water Snake population with Pattern C banding pattern occur?

    <p>Pelee Island</p> Signup and view all the answers

    What does the increase in frequency of beneficial alleles lead to?

    <p>Increased reproductive advantage</p> Signup and view all the answers

    Which of the following is NOT involved in evolution by natural selection?

    <p>Gene flow</p> Signup and view all the answers

    Where does the Lake Erie Water Snake population with Pattern B banding pattern occur?

    <p>Bass Islands</p> Signup and view all the answers

    What is the main source of new genetic variations in a population?

    <p>Mutation</p> Signup and view all the answers

    Which banding pattern represents the highest percentage of individuals in the Lake Erie Water Snake population?

    <p>Pattern C</p> Signup and view all the answers

    Which factor can result in the bottleneck effect in a population?

    <p>Environmental change</p> Signup and view all the answers

    What is the bottleneck effect?

    <p>The drastic reduction in population size</p> Signup and view all the answers

    How can gene flow affect genetic variation among populations?

    <p>It reduces genetic variation over time</p> Signup and view all the answers

    What can gene flow improve?

    <p>Adaptation to local conditions</p> Signup and view all the answers

    How can alleles be transferred through gene flow?

    <p>Through the movement of both fertile individuals and gametes</p> Signup and view all the answers

    Which of the following is NOT a consequence of the bottleneck effect?

    <p>Movement of alleles among populations</p> Signup and view all the answers

    What can result from a drastic reduction in population size due to a sudden environmental change?

    <p>Bottleneck effect</p> Signup and view all the answers

    How does the bottleneck effect affect the gene pool of a population?

    <p>It reduces the genetic variation in the gene pool</p> Signup and view all the answers

    What is gene flow?

    <p>The movement of alleles among populations</p> Signup and view all the answers

    What is the role of gene flow in the spread of pesticide resistance alleles?

    <p>It increases the spread of pesticide resistance alleles</p> Signup and view all the answers

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