Botany-DNA Structure
NEET Botany DNA Structure MCQ Question
Type: MCQ-diagram based-Medium-Class 12
Consider a diagram showing a DNA molecule with its sugar-phosphate backbone and nitrogenous bases. Which part of the DNA structure is responsible for the backbone formation?
A
Sugar and phosphate groups
B
Nitrogenous bases
C
Hydrogen bonds
D
Ribose sugar
Correct Answer
Option A
Detailed Explanation
The backbone of a polynucleotide chain is formed due to sugar and phosphates. The nitrogenous bases are linked to the sugar moiety and project from the backbone.
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