Gene Flow and Increase in Population Fitness
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Questions and Answers

What is the mechanism that consistently causes adaptive evolution?

  • Gene flow
  • Natural selection (correct)
  • Insecticide resistance alleles
  • Relative fitness

    • Which mode of selection favors individuals at one end of the phenotypic range?

  • Disruptive selection
  • Directional selection (correct)
  • Diversifying selection
  • Stabilizing selection

    • What does relative fitness measure?

  • Phenotypic range
  • Insecticide resistance alleles
  • Genetic variations
  • Contribution to the gene pool of the next generation (correct)

    • What can increase the fitness of a population?

    <p>$ ext{Gene flow}$</p> Signup and view all the answers

    What is the only mechanism that consistently causes adaptive evolution?

    <p>$ ext{Natural selection}$</p> Signup and view all the answers

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