Zoology-Nucleic Acids

NEET Zoology Nucleic Acids MCQ Question

Type: MCQ-diagram based-Medium-Class 11

Consider a diagram showing the structure of a nucleotide with three parts labeled as X, Y, and Z. If X is the phosphate group, Y is the pentose sugar, what is Z likely to represent?

Question diagram
A

A nitrogenous base

B

A carboxyl group

C

A hydroxyl group

D

A methyl group

Correct Answer

Option A

Detailed Explanation

In nucleic acids, a nucleotide is composed of a phosphate group, a pentose sugar, and a nitrogenous base. The NCERT context mentions that nucleic acids are polynucleotides with nucleotides as their building blocks.

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