The OH group attached to the 2’-carbon atom of ribose is replaced by what in deoxyribose?

AGB-0032

QUESTION

The OH group attached to the 2’-carbon atom of ribose is replaced by what in deoxyribose?

OPTIONS

(A) Sulph-hydryl group
(B) Hydrogen
(C) Oxygen
(D) Phosphate

ANSWER

(B) Hydrogen

EXPLANATION

In deoxyribose, the 2′-hydroxyl group present in ribose is replaced by hydrogen, making deoxyribose chemically different from ribose. It is not replaced by oxygen, phosphate, or a sulfhydryl group.

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