X Chromosome Genetic Disorders Quiz
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Questions and Answers

Which molecule contains the sugar ribose?

  • DNA
  • mRNA
  • tRNA
  • RNA (correct)

    • Why are females often asymptomatic when inheriting defective genes related to X chromosomes?

  • They have functional proteins from both X chromosomes (correct)
  • They have a backup Y chromosome
  • They have extra copies of the X chromosome
  • They have a different type of defective gene

    • What is the primary reason why most conditions related to X chromosome defects affect only males?

  • Females have more severe symptoms
  • Females have stronger immune systems
  • Males have more genetic mutations
  • Males have only one X chromosome (correct)

    • What is the primary difference between RNA and DNA?

    <p>RNA is largely single-stranded, while DNA is always double-stranded (A)</p> Signup and view all the answers

    What is the initial step of transcription?

    <p>Opening and unwinding a small portion of the DNA double helix (C)</p> Signup and view all the answers

    Which molecule contains the sugar ribose?

    <p>RNA (A)</p> Signup and view all the answers

    What is the primary reason why most conditions related to X chromosome defects affect only males?

    <p>Males have only a single copy of the X chromosome (B)</p> Signup and view all the answers

    Which molecule is largely single-stranded but often contains short stretches of nucleotides that can form conventional base pairs?

    <p>RNA (D)</p> Signup and view all the answers

    What is the initial step of transcription?

    <p>Opening and unwinding of a small portion of the DNA double helix (A)</p> Signup and view all the answers

    What is the primary difference between RNA and DNA?

    <p>Presence of uracil in RNA instead of thymine (C)</p> Signup and view all the answers

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