Mechanisms of Evolution Lab: Natural Selection, Gene Flow, Genetic Drift
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Questions and Answers

Individuals with the AS genotype for sickle cell disease and individuals with the AA genotype differ in terms of their susceptibility to which disease?

  • Diabetes
  • Malaria (correct)
  • Cancer
  • HIV
  • Which of the following is not one of the assumptions a population must meet to be in Hardy-Weinberg equilibrium?

  • Random selection (correct)
  • No mutation
  • No gene flow
  • Large population size
  • What is the significance of heterozygote advantage in the context of genetic diseases like sickle cell disease?

  • It confers an advantage in certain environments, promoting the persistence of genetic diseases (correct)
  • It has no impact on genetic diseases
  • It increases the occurrence of genetic diseases in populations
  • It leads to the elimination of genetic diseases
  • In what type of environment are individuals with the AS genotype for sickle cell disease less susceptible to malaria?

    <p>A tropical environment</p> Signup and view all the answers

    Which characteristic distinguishes prokaryotic cells from eukaryotic cells in terms of genetic material?

    <p>Location of genetic material in a nucleoid</p> Signup and view all the answers

    What is the primary role of the cell wall in most prokaryotic cells?

    <p>Maintaining cell shape and preventing bursting in hypotonic environments</p> Signup and view all the answers

    Why does natural selection act on phenotypes and not genotypes?

    <p>Phenotypes determine an organism's survival and reproduction</p> Signup and view all the answers

    Which process can introduce new genetic variation into a population?

    <p>Gene flow</p> Signup and view all the answers

    In Hardy-Weinberg equilibrium, what does the equation p^2 + 2pq + q^2 = 1 represent?

    <p>Genotypic frequencies in a population</p> Signup and view all the answers

    What is an assumption of a population in Hardy-Weinberg equilibrium?

    <p>No mutation</p> Signup and view all the answers

    Why is sickle cell disease considered an example of heterozygote advantage in some environments?

    <p>Heterozygous individuals are resistant to malaria</p> Signup and view all the answers

    How does genetic drift impact small populations?

    <p>Leads to significant evolutionary changes</p> Signup and view all the answers

    What is the main mode of reproduction for Phylum Chytridiomycota?

    <p>Mainly asexually through zoospores</p> Signup and view all the answers

    Which fungal phylum is noted for being aquatic and having motile spores?

    <p>Chytridiomycota</p> Signup and view all the answers

    What is the main reproduction method for Phylum Zygomycota?

    <p>Asexually by sporangiospores</p> Signup and view all the answers

    Which fungal phylum includes yeasts, molds, and morels, and is responsible for fermentations and antibiotic production?

    <p>Ascomycota</p> Signup and view all the answers

    Which fungal phylum is mostly found on decaying plant and animal matter and is important in soil fertility?

    <p>Zygomycota</p> Signup and view all the answers

    Which fungal phylum has asci (sacs) as structures where spores are formed?

    <p>Ascomycota</p> Signup and view all the answers

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