How many rings are present in a purine nitrog | vedclass

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(B) Nitrogenous bases are classified into two types: purines and pyrimidines.Purines are double-ring structures consisting of a six-membered pyrimidin

Vedclass · Accepted Answer

Two

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(B) Nitrogenous bases are classified into two types: purines and pyrimidines.Purines are double-ring structures consisting of a six-membered pyrimidine ring fused to a five-membered imidazole ring.Examples of purines include adenine $(A)$ and guanine $(G)$.In contrast,pyrimidines are single-ring structures.Therefore,a purine nitrogenous base contains two rings.

How many rings are present in a purine nitrogenous base?

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