Question Detail
Question
Which nitrogenous base is found only in RNA and not in DNA?
Correct Answer
Option A is the correct answer.
Detailed Explanation
RNA contains adenine (A), guanine (G), cytosine (C), and uracil (U). DNA contains A, G, C, and thymine (T). Uracil replaces thymine in RNA.
Hint
Remember the acronyms: RNA has U, DNA has T.