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The Theory of Evolution Formative Quiz

Quiz by Christopher Chartier

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16 questions
Show answers
  • Q1

    In the hypothetical insect population, the genotypic frequency of the green and red bugs changed significantly after some individuals migrated away from the home plant. This change in genotypic frequency can be attributed to..

    Natural Selection

    Genetic drift

    Gene flow


  • Q2

    Tasmania is an island state off the coast of Australia. It has many animal species that are not found anywhere else in the world, such as the Tasmanian Devil. Which of the following would be a result of genetic drift on the Tasmanian devil population?

    Geographic isolation may cause new favorable traits to appear in the Tasmanian devil population.

    Other mammal species may breed with the Tasmanian devil population to produce a new species.

    The Tasmanian devil may become extinct with limited genetic variation.

    A new species of the Tasmanian devil may appear with such a small population.

  • Q3

    When an organism joins a new population, its genes become part of the new population's gene pool. How does this gene flow affect neighboring populations?

    Gene flow between neighboring populations keeps their gene pools similar and decreases genetic diversity over time.

    Gene flow between neighboring populations has no effect on the gene pool.

    Gene flow between neighboring populations keeps their gene pools similar and increases genetic diversity over time.

    Gene flow increases the chance for reproductive isolation which can cause new species to form.

  • Q4

    Which of the following is a consequence of genetic drift?

    increased variation

    more alleles in the population

    decreased biodiversity

    less mating among individuals

  • Q5

    When a gene mutation takes place, it __________.

    always results in a positive change in natural selection

    can be contagious from one person to the next via coughing, saliva, etc

    always causes damage to the affected gene

    can result in a positive or negative change to the gene


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