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प्रश्न
Which one of the following nitrogen bases is absent in RNA?
पर्याय
Adenine
Guanine
Uracil
Thymine
MCQ
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उत्तर
Thymine
Explanation:
RNA contains Adenine, Guanine, and Uracil, but Thymine is absent. In RNA, Uracil replaces Thymine (which is present in DNA).
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