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Question
Histones are rich in ______.
Options
alanine and glycine
lysine and arginine
histidine and serine
cysteine and tyrosine
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Solution
Histones are rich in lysine and arginine.
Explanation:
Histones are basic proteins that are positively charged and high in the amino acids arginine and lysine. Histones bond closely to DNA, which is an acid H4 since they are basic.
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