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Histones are enriched with -
A
Lysine & Arginine
B
Leucine & Lysine
C
Phenylalanine & Leucine
D
Phenylalanine & Arginine
Explanation
Histones are rich in basic amino acids lysine and arginine.
Detailed Solution
Histones are positively charged, basic nuclear proteins that package negatively charged DNA. Their positive charge is due to an abundance of basic amino acid residues: lysine and arginine.