How is sugar different in DNA and RNA?

Answer:
Sugar is a five carbon (pentose sugar), in nucleic acids (both in DNA and in RNA).

The pentose sugar in RNA has a hydroxyl group (-OH) linked to its number two Carbon atom.

The pentose sugar in DNA hasn't got an oxygen in that position (hence the name: Deoxyribonycleic Acid (DNA), only a -H atom.
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