Balancing Selection Quiz
20 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which term describes the occurrence when natural selection maintains stable frequencies of two or more phenotypic forms in a population?

  • Frequency-dependent selection
  • Deleterious mutation
  • Heterozygote advantage
  • Balancing selection (correct)
  • What is the term for the advantage that heterozygotes have a higher fitness than both homozygotes?

  • Deleterious mutation
  • Balancing selection
  • Frequency-dependent selection
  • Heterozygote advantage (correct)
  • Which type of selection occurs when the fitness of a phenotype depends on its frequency in the population?

  • Heterozygote advantage
  • Frequency-dependent selection (correct)
  • Balancing selection
  • Deleterious mutation
  • What is the term for the advantage that the sickle-cell allele causes deleterious mutations in hemoglobin but also confers malaria resistance?

    <p>Heterozygote advantage</p> Signup and view all the answers

    Which type of selection includes heterozygote advantage and frequency-dependent selection?

    <p>Balancing selection</p> Signup and view all the answers

    What is the term for the occurrence when natural selection maintains stable frequencies of multiple phenotypic forms in a population?

    <p>Balancing selection</p> Signup and view all the answers

    Which type of selection occurs when the fitness of a phenotype depends on its frequency in the population?

    <p>Frequency-dependent selection</p> Signup and view all the answers

    What is the term for the advantage that heterozygotes have a higher fitness than both homozygotes?

    <p>Heterozygote advantage</p> Signup and view all the answers

    Which type of selection includes heterozygote advantage and frequency-dependent selection?

    <p>Balancing selection</p> Signup and view all the answers

    What is the term for the advantage that the sickle-cell allele causes deleterious mutations in hemoglobin but also confers malaria resistance?

    <p>Heterozygote advantage</p> Signup and view all the answers

    Which type of selection depends on the frequency of a phenotype in a population?

    <p>Frequency-dependent selection</p> Signup and view all the answers

    What advantage do 'left-mouthed' fish have in a population of scale-eating fish when 'right-mouthed' individuals become more common?

    <p>Prey are more likely to guard their left side</p> Signup and view all the answers

    What is sexual selection?

    <p>Natural selection for mating success</p> Signup and view all the answers

    What can sexual selection result in?

    <p>Sexual dimorphism</p> Signup and view all the answers

    Why can natural selection not fashion perfect organisms?

    <p>All of the above</p> Signup and view all the answers

    What is the main limitation of natural selection?

    <p>It can only act on existing variations</p> Signup and view all the answers

    What limits evolution?

    <p>Historical constraints</p> Signup and view all the answers

    Why are adaptations often compromises?

    <p>Because they involve trade-offs</p> Signup and view all the answers

    What factors interact in the process of natural selection?

    <p>Chance, natural selection, and the environment</p> Signup and view all the answers

    What is sexual dimorphism?

    <p>The marked differences between the sexes in secondary sexual characteristics</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Browser