Question:
The base which is present in DNA but not in RNA is:
The base which is present in DNA but not in RNA is:
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DNA = A, G, C, T
RNA = A, G, C, U
Remember: Thymine (T) is replaced by Uracil (U) in RNA.
Updated On: Mar 2, 2026
- Guanine
- Cytosine
- Thymine
- Adenine
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The Correct Option is C
Solution and Explanation
Concept:
DNA and RNA differ in one nitrogenous base:
Step 1: Compare bases of DNA and RNA. Common bases in both: Adenine, Guanine, Cytosine Unique bases: DNA → Thymine RNA → Uracil
Step 2: Identify the correct option. The base present in DNA but not in RNA is Thymine.
- DNA contains: Adenine (A), Guanine (G), Cytosine (C), Thymine (T)
- RNA contains: Adenine (A), Guanine (G), Cytosine (C), Uracil (U)
Step 1: Compare bases of DNA and RNA. Common bases in both: Adenine, Guanine, Cytosine Unique bases: DNA → Thymine RNA → Uracil
Step 2: Identify the correct option. The base present in DNA but not in RNA is Thymine.
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