Difference between Purine and Pyrimidines

Dear Student,

Purines and Pyrimidines are the two types of nitrogen containing bases.

1. Purines consist of two rings (six-membered and a five-membered nitrogen-containing ring), fused together.

Pyrimidines have only a six-membered nitrogen-containing ring. 

2. Purine includes Adenine and Guanine.
Pyrimidine includes Cytosine and Thymine in DNA and Uracil in RNA.



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