JEE Main 2004 — Biomolecules Question with Solution
From: AIEEE 2004
Question
Which base is present in RNA but not in DNA?
Choose an option
Show full solutionCorrect option: A
Correct answer
AUracil
Step-by-step explanation
contains cytosine and uracil as pyrimidine bases while has cytosine and thymine.
Both have the same purine bases i.e., Guanine and adenine.
Both have the same purine bases i.e., Guanine and adenine.
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This is a previous-year question from JEE Main 2004, covering the Biomolecules chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.