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Which of the following essential nitrogenous bases belongs strictly to the pyrimidine structural claBiomolecules Chemistry Question

Question

Which of the following essential nitrogenous bases belongs strictly to the pyrimidine structural class and is found natively exclusively in RNA strands?

Answer: D

💡 Solution & Explanation

Uracil ($U$) is a single-ringed pyrimidine base strictly utilized in RNA. DNA uses the pyrimidine Thymine ($T$) instead. Adenine and Guanine are double-ringed purines found in both.

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