JEE Main · ChemistryEasy
Which base is present in RNA but not in DNA?
- A.Adenine
- B.Guanine
- C.Cytosine
- D.Uracil
Show correct answer & step-by-step solution
Correct answer: D — Uracil
Solution
- DNA contains adenine, guanine, cytosine, and thymine.
- RNA contains adenine, guanine, cytosine, and uracil.
- Uracil replaces thymine in the RNA structure.
- Hence the answer is (D).
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