Zoology-Nucleic Acids

NEET Zoology Nucleic Acids MCQ Question

Type: MCQ-diagram based-Hard-Class 11

Consider a diagram showing the structure of a nucleotide. If the phosphate group is labeled 'X', the pentose sugar is labeled 'Y', and the nitrogenous base is labeled 'Z', which of the following correctly matches these labels to their components?

Question diagram
A

X: Phosphate group, Y: Ribose, Z: Adenine

B

X: Ribose, Y: Phosphate group, Z: Uracil

C

X: Adenine, Y: Ribose, Z: Phosphate group

D

X: Phosphate group, Y: Adenine, Z: Ribose

Correct Answer

Option A

Detailed Explanation

A nucleotide consists of a phosphate group, a pentose sugar (ribose in RNA), and a nitrogenous base (such as adenine).

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