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Histone proteins are rich in
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Histone proteins are rich in

A
Alanine and glycine

B
Arginine and lysine

C
Histidine and serine

D
Tyrosine and cysteine

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In eukaryotic cell, the DNA is wound around an octamer of histone core to form bead like structures called nucleosomes. The octamer core of histone proteins is made up of two units each of , , and . Another histone protein , is present at the point of entry and exit of DNA from nucleosome. The histone proteins are rich in basic amino acids lysine and arginine which gives a positive charge to them. The positive charge of histone proteins helps in winding of negatively charged DNA around them.
Thus, the correct answer is option B.
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Question Text
Histone proteins are rich in
TopicMolecular Basis of Inheritance
SubjectBiology
ClassClass 12
Answer TypeText solution:1
Upvotes106