Recent

  • Show all results for ""
The Smallest Unit of Evolution
20 Questions
0 Views

The Smallest Unit of Evolution

Created by
@MesmerizedMoldavite7389

Questions and Answers

Which of the following is a common misconception about evolution?

  • Individual organisms evolve (correct)
  • Genetic variation is necessary for evolution
  • Only populations can evolve
  • Natural selection acts on populations

    • What is microevolution?

  • A change in heritable traits in individual organisms
  • A change in genetic drift in a population
  • A change in gene flow between populations
  • A change in allele frequencies in a population over generations (correct)

    • Which of the following mechanisms can cause allele frequency change in a population?

  • Genetic drift and gene flow
  • Natural selection and genetic drift (correct)
  • Natural selection and gene flow
  • Genetic drift and internal isolation

    • What is the main mechanism that consistently causes adaptive evolution?

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

    What is a prerequisite for evolution by natural selection?

    <p>Genetic variation</p> Signup and view all the answers

    What does natural selection act on?

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

    What is the smallest unit of evolution?

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

    Which of the following is not a mechanism that causes allele frequency change?

    <p>Internal isolation</p> Signup and view all the answers

    What is the evidence of selection by food source shown in Figure 21.2?

    <p>Finch evolving</p> Signup and view all the answers

    What does microevolution refer to?

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

    According to Mendel's work on pea plants, what did it provide evidence of?

    <p>Discrete heritable units</p> Signup and view all the answers

    What does genetic variation refer to?

    <p>Differences in the composition of genes and other DNA sequences among individuals</p> Signup and view all the answers

    How are some phenotypic differences classified?

    <p>On an either-or basis</p> Signup and view all the answers

    What determines traits that are usually 'either-or' in nature?

    <p>A single gene</p> Signup and view all the answers

    What influences coat color in horses?

    <p>Multiple genes</p> Signup and view all the answers

    What can genetic variation be measured at?

    <p>The molecular level of DNA</p> Signup and view all the answers

    Where do most nucleotide variations occur?

    <p>In noncoding regions (introns)</p> Signup and view all the answers

    Do nucleotide variations in coding regions usually affect protein sequences?

    <p>No, but they can affect protein function</p> Signup and view all the answers

    What kind of genetic variation is shown in Figure 21.4?

    <p>Genetic variation at the molecular level</p> Signup and view all the answers

    Which of the following is true about genetic variation?

    <p>It can occur in both coding and noncoding regions of DNA</p> Signup and view all the answers

    More Quizzes Like This

    The Quest for the Smallest Particles
    16 questions

    The Quest for the Smallest Particles

    ReadyTropicalRainforest avatar
    ReadyTropicalRainforest
    The Ultimate Torah and Commandments Quiz
    10 questions

    Torah Commandments Quiz: Test Your Knowledge

    Rabbi Karp avatar
    Rabbi Karp
    The Smallest Unit of Evolution
    20 questions

    The Smallest Unit of Evolution

    MesmerizedMoldavite7389 avatar
    MesmerizedMoldavite7389
    Chapter 23 Microevolution: The Smallest Unit of Evolution
    18 questions

    Chapter 23 Microevolution: The Smallest Unit of Evolution

    EarnestYeti avatar
    EarnestYeti
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser