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Which one of the following statements about Histones is Wrong? (1) Histones carry positive charge in the side chain.

Which one of the following statements about Histones is Wrong?
(1) Histones carry positive charge in the side chain.
(2) Histones are organized to form a unit of 8 molecules.
(3) The pH of histones is slightly acidic.
(4) Histones are rich in amino acids – Lysine and Arginine.
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Answer: (3) The pH of histones is slightly acidic.

  • (1) Correct: histones carry positive charges in their side chains, which help them bind to negatively charged DNA.
  • (2) Correct: histones are organised into a unit of eight molecules called the histone octamer; DNA wraps around it to form a nucleosome.
  • (4) Correct: histones are rich in the basic amino acid residues lysine and arginine.
  • (3) Wrong: because they are rich in basic amino acids, histones are basic proteins, not acidic.
Doubtly AI · 23 Oct 2026 AI-verified · Oct 2026 Report
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