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histones are rich in
Question:
Histones are rich in _______.
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Histones are basic due to lysine and arginine; recall their role in DNA packaging.
Maharashtra Class XII - 2023
Maharashtra Class XII
Updated On:
Nov 10, 2025
Lysine and Arginine
Leucine and Methionine
Serine and Leucine
Phenylalanine and Lysine
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The Correct Option is
A
Solution and Explanation
Histones are basic proteins that package DNA into nucleosomes in eukaryotic cells. They are rich in positively charged amino acids, specifically lysine and arginine, which facilitate binding to negatively charged DNA.
Answer: Lysine and Arginine.
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