Question

Histones are rich in _______.

• A. Lysine and Arginine
• B. Leucine and Methionine
• C. Serine and Leucine
• D. Phenylalanine and Lysine

Hint:

Histones are basic due to lysine and arginine; recall their role in DNA packaging.

Answer 1

The Correct Option is A

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.