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Which nitrogenous base is not found in RNA?

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in Biology – Class 11 by (272k points)
Which nitrogenous base is not found in RNA?

(a) Guanine

(b) Adenine

(c) Thymine

(d) Cytosine

This question was posed to me in semester exam.

This intriguing question comes from Biomolecules topic in portion Biomolecules of Biology – Class 11

1 Answer

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Best answer
Correct choice is (c) Thymine

For explanation I would say: Deoxyribonucleic acid (DNA) contains the nitrogenous bases adenine, guanine, cytosine and thymine. However, ribonucleic acid (RNA) contains the nitrogenous bases adenine, guanine, cytosine and uracil instead of thymine.

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