A nucleoside is composed of which components?

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Multiple Choice

A nucleoside is composed of which components?

Explanation:
A nucleoside is formed by a nitrogenous base attached to a sugar. The sugar is either ribose (in RNA) or deoxyribose (in DNA), and the two are linked by a β-N-glycosidic bond. A phosphate group is not part of a nucleoside—that addition creates a nucleotide, which is the base plus sugar plus one or more phosphates. So the essential pairing is nitrogenous base plus sugar. The other options leave out either the sugar or the base, which is why they don’t describe a nucleoside.

A nucleoside is formed by a nitrogenous base attached to a sugar. The sugar is either ribose (in RNA) or deoxyribose (in DNA), and the two are linked by a β-N-glycosidic bond. A phosphate group is not part of a nucleoside—that addition creates a nucleotide, which is the base plus sugar plus one or more phosphates. So the essential pairing is nitrogenous base plus sugar. The other options leave out either the sugar or the base, which is why they don’t describe a nucleoside.

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