Genetic Drift and Natural Selection Quiz
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Questions and Answers

What type of selection removes individuals from the center of a phenotypic distribution?

  • Kin Selection
  • Disruptive Selection (correct)
  • Directional Selection
  • Stabilizing Selection
  • Which selection process favors traits that benefit related members of a group?

  • Sexual Selection
  • Gene Flow
  • Disruptive Selection
  • Kin Selection (correct)
  • What is the outcome of Sexual Selection in terms of evolutionary fitness?

  • Phenotypic differences
  • Both survival and reproductive abilities (correct)
  • Survival ability only
  • Ability to reproduce only
  • In the context of natural selection, what happens when pollinators transport pollen across a river to flowers on the other side?

    <p>Gene Flow takes place</p> Signup and view all the answers

    What process leads to the elimination of pink monkeys due to the dominance of the white allele?

    <p>Natural Selection</p> Signup and view all the answers

    What drives the formation of bimodal distributions in populations under Disruptive Selection?

    <p>Removal of central individuals from the gene pool</p> Signup and view all the answers

    What is required for natural selection to occur within a population?

    <p>Variation in individual traits</p> Signup and view all the answers

    Which scenario would NOT promote genetic drift?

    <p>Geographical isolation leading to separate populations</p> Signup and view all the answers

    What happens in a bottleneck population scenario?

    <p>Surviving population has reduced gene pool</p> Signup and view all the answers

    Why is variation in individual traits important for natural selection?

    <p>To allow nature to select certain traits over others</p> Signup and view all the answers

    How does the founder effect contribute to genetic drift?

    <p>By reducing the gene pool of the founding group</p> Signup and view all the answers

    What role does high rate of population growth play in natural selection?

    <p>It results in a struggle for limited resources</p> Signup and view all the answers

    What is the main outcome of natural selection?

    <p>Change in the genetic makeup of a population</p> Signup and view all the answers

    In which type of natural selection does the distribution mean remain unchanged?

    <p>Stabilizing Selection</p> Signup and view all the answers

    What happens in directional selection?

    <p>It causes a shift in the distribution towards one extreme</p> Signup and view all the answers

    How does reproduction contribute to natural selection?

    <p>Individuals with traits suitable for their environment reproduce more</p> Signup and view all the answers

    What is the result of stabilizing selection on extreme variations?

    <p>Extreme variations become less common or lost</p> Signup and view all the answers

    Why does natural selection result in changes in allele frequencies in a population?

    <p>As individuals best adapted to the environment reproduce more</p> Signup and view all the answers

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