Question:
Which of the following is not present in RNA?
Which of the following is not present in RNA?
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Remember: DNA contains Thymine, while RNA contains Uracil. This is a key difference between these nucleic acids.
Updated On: Apr 15, 2025
- Adenine
- Guanine
- Thymine
- Uracil
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The Correct Option is C
Solution and Explanation
RNA (Ribonucleic Acid) differs from DNA in its nucleotide composition. The nitrogenous bases in RNA include: Adenine (A), Guanine (G), Cytosine (C), Uracil (U).
Thymine (T) is not present in RNA. Instead, Uracil (U) takes its place and pairs with Adenine during transcription.
Key Points: Thymine is exclusively found in DNA. Uracil is specific to RNA and is chemically similar to Thymine but lacks a methyl group. Thus, the correct answer is Thymine.
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