The attachment between the base and sugar in a nucleotide is through ______ bond.

hydrogen

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peptide

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phosphodiester

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glycosidic

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Solution

The correct option is D glycosidic
In nucleotides, the sugar ring is attached to the base by a bond between $C_{1}$ carbon of the sugar and the nitrogen atom of the heterocyclic ring. This is a N-glycosidic bond. The phosphate group is bonded to the hydroxyl group of the $C_{5}$ carbon of sugar. Thus option (d) is correct.

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