Assertion: Histones are basic in nature. Reason: Histones are rich in the amino acids lysine and arginine.

Both Assertion (A) and reason (R) are correct and R is the correct explanation of A. Both Assertion (A) and reason (R) are correct  but R is not the correct explanation of A. Assertion (A) is true but Reason (R) is not correct. Both Assertion (A) and Reason are false (F ).

Both Assertion (A) and reason (R) are correct and R is the correct explanation of A.

Histones contain a large proportion of the positively charged (basic) amino acids, lysine and arginine in their structure. DNA is negatively charged due to the phosphate groups on its backbone.