Sex Determination and Sex Chromosomes Genetics Quiz
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Questions and Answers

What is the term for the condensed X-chromosome in females?

  • Lyon body
  • Heterochromatic clump
  • X-inactivation clump
  • Barr body (correct)

    • Which geneticist proposed the Lyon Hypothesis?

  • Gregor Mendel
  • Mary Lyon (correct)
  • Barbara McClintock
  • Rosalind Franklin

    • What is the function of the Barr body in females?

  • Facilitates X-chromosome pairing
  • Suppresses Y-chromosome gene expression
  • Ensures equivalent gene expression levels (correct)
  • Promotes X-linked gene transcription

    • In males, which chromosome is much smaller than the X chromosome?

    <p>Y chromosome</p> Signup and view all the answers

    What is the term for the process of X-chromosome inactivation in females?

    <p>X-inactivation</p> Signup and view all the answers

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