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Science

9th -

12thgrade

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Lesson 50: Gene Flow and Genetic Drift

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  • 1. Multiple Choice
    30 seconds
    1 pt

    The _________________ _________________ occurs when there is a reduction in population due to natural disasters, over hunting or disease.

    founder effect

    gene flow

    bottleneck effect

    genetic drift

  • 2. Multiple Choice
    30 seconds
    1 pt

    In which of the following populations would genetic drift be most likely to cause a rapid evolution of the population?

    The human population of India

    A large population of Mexican free-tailed bats living in central Texas

    A geographically isolated population of 5000 green tree frogs

    A small group of 12 cheetahs living in Namibia

  • 3. Multiple Choice
    30 seconds
    1 pt

    As a population recovers from reduction due to the bottleneck effect, the population will experience -

    a loss of genetic dicversity.

    migration.

    no change to allele frequency.

    genetic regulation.

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