Which of the following is not a pyrimidine base?A. CytosineB. ThymineC – InterviewSolution

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1.	Which of the following is not a pyrimidine base?A. CytosineB. ThymineC. UracilD. Guanine
Answer» Correct Answer - D Guanine is a purine base. The heterocyclic base obtained for nucleosides are capable of existing in more than one tautomeric form. The forms that are shown in the `NCERT` text book are the predominant forms that the base assumes when they are present in nucleic acids.

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