One of the following does not occur in RNA

A. Adenin
B. Guanin
C. Uracyl
D. Thymine
E. Cytosin


Answer is D. Thymine [Four types of smaller molecules called ribonucleotide bases: adenine (A), cytosine (C), guanine (G), and uracil (U).]

Biology & Microbiology

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