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CBSE Class 12 · 2002 · Delhi Compartment · BiomoleculesVery Short Answer

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What are heterocyclic bases? Give an example of a nitrogenous heterocyclic base.

Answer: Ring compounds with N in the ring that act as bases — e.g. adenine (or guanine, cytosine, thymine, uracil).

Solution

A heterocyclic base is a cyclic compound whose ring contains nitrogen atoms bearing basic lone pairs — the purines and pyrimidines of nucleic acids. Example: \textbf{adenine}.

CBSE Class 12 Board · 2002 · Delhi Compartment · Subjective

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