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Biomolecules

NEET level, single correct, medium

2 of 2

Question 2 of 2

Which of the following nitrogenous bases is present in RNA but absent in DNA?

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Answer: (C) Uracil

Uracil replaces thymine in RNA molecules.

NEET question paper PDF

The full paper for each year. Open it on this page or download it.

NEET 2025 question paper (Code 45)

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More Chemistry practice

BiomoleculesDeficiency of Vitamin C causes:
Chemical BondingAccording to Molecular Orbital Theory, which of the following species has the highest bond order?
Coordination CompoundsThe magnetic moment of $[Fe(CN)_6]^{3-}$ complex ion according to spin-only formula is approximately:
Organic ChemistryToluene on reaction with $CrO_2Cl_2$ in $CS_2$ followed by hydrolysis gives benzaldehyde. This reaction is known as:
Chemical KineticsFor a first order reaction, the time required for $99.9\%$ completion is related to its half-life $t_{1/2}$ by:
ThermodynamicsA reaction is spontaneous at all temperatures if:

NEET Chemistry practice question on Biomolecules, with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.