Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Histones are positively charged basic proteins. Reason (R): Histones are rich in the basic amino acid residues lysine and arginine, which carry positive charges in their side chains. In the light of the above statements, choose the most appropriate answer from the options given below:

Step-by-step solution

Assertion is true: In eukaryotes, the packaging of negatively charged DNA is facilitated by a set of positively charged, basic proteins called histones. Reason is true: A protein acquires its charge depending upon the abundance of amino acids with charged side chains. Histones are rich in the basic amino acid residues lysine and arginine. Both of these amino acids carry positive charges in their side chains. Reason is the correct explanation of Assertion: The overall positive charge and basic nature of histones are