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Quantitative Genetics: Study of Phenotypic Variation
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Quantitative Genetics: Study of Phenotypic Variation

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Questions and Answers

What is the most direct way to estimate broad sense heritability?

  • Measuring the variance of genetically identical individuals (correct)
  • Conducting a statistical genetic analysis
  • Measuring the variance of a randomly mating population
  • Studying the traits of twins reared together
  • What is the main advantage of using identical twins reared separately in different environments to estimate heritability?

  • It is a cost-effective method
  • It is a widely used method in genetics
  • It controls for genetic variation (correct)
  • It provides a large sample size
  • What is the term for the genetic regions that influence phenotypic variation of a complex trait?

  • Phenotypic variation
  • Quantitative trait loci (QTL) (correct)
  • Genetic markers
  • Heritability estimates
  • What is the purpose of QTL mapping?

    <p>To identify genetic regions that influence phenotypic variation</p> Signup and view all the answers

    What is the term for the variation in a trait that is due to environmental factors?

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

    According to Table 2, what is the estimated heritability of height?

    <p>80%</p> Signup and view all the answers

    What is the main difference between quantitative trait loci (QTL) and heritability?

    <p>QTL are genetic regions, while heritability is a measure of genetic influence</p> Signup and view all the answers

    What is the purpose of identifying quantitative trait loci (QTL)?

    <p>To understand the genetic basis of complex traits</p> Signup and view all the answers

    What is the relationship between QTL and heritability?

    <p>QTL influence heritability</p> Signup and view all the answers

    What is the benefit of studying the heritability of human traits?

    <p>It helps us understand the genetic basis of complex traits</p> Signup and view all the answers

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