Botany-DNA Structure
NEET Botany DNA Structure MCQ Question
Type: MCQ-conceptual-Easy-Class 12
Which of the following statements about DNA structure is correct?
A
DNA consists of a double-stranded polynucleotide chain with base pairs stacked over each other.
B
DNA is composed solely of single-stranded nucleotides that do not pair.
C
The distance between base pairs in DNA is approximately 1.0 nm.
D
DNA does not have a helical structure, as it is linear in form.
Correct Answer
Option A
Detailed Explanation
The correct statement is that DNA consists of a double-stranded polynucleotide chain with base pairs stacked over each other, as indicated in the NCERT context which describes the helical structure and stacking of base pairs.
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