Which one of the following bases is NOT present in RNA?
Correct answer: C. Thyamine
- A. Cytosine
- B. Adenine
- C. Thyamine
- D. Guanine
Explanation
The base "Thymine" (T) is not present in RNA. Instead, RNA contains the base "Uracil" (U). Thyamine is a nucleotide base found in DNA but not in RNA. In DNA, thymine pairs with adenine through two hydrogen bonds, forming a T-A base pair.
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