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X and Y Chromosome in Biological Sex Determination
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X and Y Chromosome in Biological Sex Determination

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Questions and Answers

What percentage of the total human genome is represented by the X chromosome?

  • 2%
  • 10%
  • 15%
  • 5% (correct)
  • How many base pairs are there in the X chromosome?

  • 200 million
  • 100 million
  • 155 million (correct)
  • 250 million
  • In what type of chromosomes is the X chromosome classified based on the location of the centromere?

  • Submetacentric (correct)
  • Telocentric
  • Metacentric
  • Acrocentric
  • How many arms does the X chromosome consist of?

    <p>2</p> Signup and view all the answers

    Where are the bands on each arm of the X chromosome numbered starting from?

    <p>The centromere</p> Signup and view all the answers

    What is the primary purpose of G-banding in cytogenetic analysis?

    <p>To identify and study chromosomal abnormalities</p> Signup and view all the answers

    What variations can affect the appearance of banding patterns under G-banding?

    <p>Microscope resolution and staining techniques</p> Signup and view all the answers

    Which gene encodes the protein associated with Alzheimer disease 16?

    <p>AD16</p> Signup and view all the answers

    Which syndrome is associated with the gene HPRT1 located on the X chromosome?

    <p>Lesch-Nyhan syndrome</p> Signup and view all the answers

    In which region of the X chromosome is the gene for Fragile X syndrome located?

    <p>Xp11.21</p> Signup and view all the answers

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