MHT CET 2025 Chemistry question

What is the total number of -OH groups present in a nucleoside involved in formation of DNA?

(A)5
(B)4
(C)3
(D)2Correct

Answer: (D)

Solution

A nucleoside is a nitrogenous base joined (N-glycosidic bond at C-1') to a pentose sugar; in DNA the sugar is 2-deoxy-D-ribose. Deoxyribose has groups on C-3' and C-5' (C-2' has only H instead of , and the C-1' hydroxyl is used in the glycosidic bond). The bases (adenine,

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-102386