Question

Which one of the following statements about histones is wrong?

• A. Histones carry positive charge in the side chain
• B. Histones are organized to form a unit of 8 molecules
• C. The pH of histones is slightly acidic
• D. Histones are rich in amino acids - Lysine and Arginine

Answer 1

The correct option is C The pH of histones is slightly acidic

Histone proteins are organised to form a unit of eight molecules called histone octamer inside the nucleus of eukaryotic cells.


Histones are rich in basic amino acids like lysine and arginine which carry positive charge in their side chains due to which they are positively charged.

The negatively charged DNA wraps around the positively charged histone proteins to form a nucleosome.