Question

Which of the following base is not present in RNA molecule?

• A. Adenine
• B. Guanine
• C. Thymine
• D. Uracil
• E. Cytosine

Hint:

Remember that RNA contains uracil (U) instead of thymine (T), which is found in DNA. The other bases, adenine (A), guanine (G), and cytosine (C), are present in both RNA and DNA.

Answer 1

The Correct Option is C

Step 1: RNA (Ribonucleic Acid) is a nucleic acid that contains four nitrogenous bases: adenine (A), guanine (G), cytosine (C), and uracil (U). The bases in RNA are similar to those in DNA, with the key difference that RNA contains uracil instead of thymine.
Step 2: The four bases present in RNA are:
- Adenine (A)
- Guanine (G)
- Cytosine (C)
- Uracil (U)
Step 3: Thymine (T), which is present in DNA, is not found in RNA. In RNA, uracil replaces thymine as the complementary base to adenine.
Thus, the base that is not present in RNA is Thymine, so the correct answer is option (C).