Frequency of Alleles in a Population
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Questions and Answers

What did Darwin coin the phrase 'descent with modification' to describe?

  • Rapid changes from an ancestral type
  • Dramatic changes from an ancestral type
  • Gradual changes from an ancestral type (correct)
  • Sudden changes from an ancestral type
  • What did Darwin note had changed in the Galápagos tortoises?

  • Their size (correct)
  • Their behavior
  • Their color
  • Their habitat
  • What did Darwin get the idea of natural selection from?

  • Thinking about mutation
  • Thinking about genetic recombination
  • Thinking about artificial selection (correct)
  • Thinking about genetic drift
  • What did the different groups of finches on the Galápagos Islands eat, according to the text?

    <p>Insects, fruits, and seeds of different sizes</p> Signup and view all the answers

    How did the finch population on the Galápagos Islands change over time, according to the text?

    <p>They gradually branched in several directions</p> Signup and view all the answers

    In a population of 50 diploid individuals with 100 alleles, if 8 alleles are 'a', what is the frequency of allele 'A'?

    <p>0.72</p> Signup and view all the answers

    Where does evolution occur based on the information provided?

    <p>In populations, not in individuals</p> Signup and view all the answers

    What did Charles Darwin's voyage to the Galapagos Islands provide?

    <p>A wealth of evidence for evolution</p> Signup and view all the answers

    What is the main mechanism of evolution explained by Darwin?

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

    Why can a change in allele frequencies occur in a population?

    <p>Due to natural selection</p> Signup and view all the answers

    What is the significance of Aa, AA, and aa in a diploid individual?

    <p>Represent different genotypes</p> Signup and view all the answers

    Which statement best describes the process of evolution?

    <p>A genetic change in a population over multiple generations.</p> Signup and view all the answers

    What is the meaning of the phrase "descent with modification" in the context of evolution?

    <p>The process of an organism inheriting traits from its ancestors while also exhibiting new variations.</p> Signup and view all the answers

    Which of the following best represents the concept of a gene pool in the context of evolution?

    <p>The collection of all genes and their alleles present in a population.</p> Signup and view all the answers

    How is the frequency of an allele in a population typically calculated?

    <p>By dividing the number of copies of that allele by the total number of alleles in the population.</p> Signup and view all the answers

    Which term describes an individual with two different alleles for a particular gene?

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

    According to the provided information, what does the process of evolution act upon?

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

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