Chromatin and Nucleosomes
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Questions and Answers

Which of the following statements about histone proteins is correct?

  • Histone proteins are acidic in nature.
  • Histone proteins contain many negatively-charged amino acids.
  • Histone proteins bind with the sugars along the DNA backbone.
  • Histone proteins contain many positively-charged amino acids. (correct)

    • Which of the following is an invariant feature of nucleosomes in all eukaryotic cells?

  • The length of core DNA is always 146bp. (correct)
  • The length of core DNA varies between cells.
  • The length of linker DNA varies between cells.
  • The length of linker DNA is always 146bp.

    • Which histones make up the octamer in a nucleosome?

  • H2A and H2B (correct)
  • H1 and H2A
  • H3 and H4
  • H2B and H3

    • What is the role of the linker histone H1?

    <p>Binds to the linker DNA.</p> Signup and view all the answers

    How many times is the core DNA wound around the outside of the histone octamer?

    <p>1.65 times</p> Signup and view all the answers

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