Ownclasses
Distinguish between Purines and Pyrimidines.
Answer

Purines

Pyrmidines

(1) Its molecules is double ringed.

(2) It is a nine membered ring.

(3) Its molecule is larger.

(5) For eg. Adenine and guanine.

(1) Its molecule is single ringed.

(2) It is six membered ring.

(3) lIts molecule is smaller.

(4) For e.g Thymine and cytosine.