Genetics: Dominant and Recessive Alleles
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Questions and Answers

What is the total number of alleles in the population?

  • 220 (correct)
  • 110
  • 55
  • 440

    • How many alleles does each animal have for this gene?

  • 3
  • 4
  • 1
  • 2 (correct)

    • What is the purpose of calculating the total number of alleles?

  • To determine the number of animals in the population
  • To determine the number of each allele in the population (correct)
  • To determine the species of the animal
  • To determine the gene's function

    • What operation is performed to calculate the total number of alleles?

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

    What is the significance of the number 110 in the calculation?

    <p>The number of animals in the population</p> Signup and view all the answers

    What is the outcome of a recessive allele in a heterozygous Aa individual?

    <p>It is not expressed, as the dominant allele overshadows it</p> Signup and view all the answers

    Which genotype is required for the recessive allele to be expressed?

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

    What is the relationship between the dominant and recessive alleles in a heterozygous Aa individual?

    <p>The dominant allele overshadows the recessive allele</p> Signup and view all the answers

    In which situation would the recessive allele have no effect?

    <p>When paired with a dominant allele in a heterozygous individual</p> Signup and view all the answers

    What is the role of the dominant allele in a heterozygous Aa individual?

    <p>It masks the effect of the recessive allele</p> Signup and view all the answers

    How many A1 alleles are contributed by the 15 A1A1 animals?

    <p>30</p> Signup and view all the answers

    What is the total number of A2 alleles contributed by the A1A2 and A2A3 animals?

    <p>36</p> Signup and view all the answers

    How many A3 alleles are contributed by the A2A3 animals?

    <p>30</p> Signup and view all the answers

    What is the total number of A1 alleles?

    <p>73</p> Signup and view all the answers

    What is the total number of A2 alleles contributed by the A2A2 and A2A3 animals?

    <p>40</p> Signup and view all the answers

    What is the primary factor that influences the frequency of genetic traits in offspring?

    <p>Frequency of genes in the parental population</p> Signup and view all the answers

    Which of the following is not a direct influence on the frequency of genetic traits in offspring?

    <p>Environmental factors</p> Signup and view all the answers

    What is the role of the parental population in determining the frequency of genetic traits in offspring?

    <p>Setting the frequency of genes in the offspring</p> Signup and view all the answers

    Why is the frequency of genetic traits in offspring dependent on the parental population?

    <p>Because the offspring inherits genes from the parental population</p> Signup and view all the answers

    What is the relationship between the frequency of genes and the frequency of genetic traits in offspring?

    <p>The frequency of genes determines the frequency of genetic traits</p> Signup and view all the answers

    What is another term for the movement of animals out of a breed?

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

    What type of movement leads to a decrease in population size?

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

    What is the term for the movement of animals out of a breed or population?

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

    What is the result of emigration on a population size?

    <p>A decrease in population size</p> Signup and view all the answers

    Why is emigration important in a population?

    <p>To regulate population size</p> Signup and view all the answers

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