NEET2026Zoology-Molecular Basis of Inheritance
NEET 2026 Zoology DNA and RNA Structure MCQ Question
Type: MCQ-conceptual-Easy-Class 12
The correct statement with regard to the secondary structure of DNA/RNA is
A
RNA possesses a single strand helix structure and contains thymine as one of the four bases
B
DNA possesses a double strand helix structure and contains thymine as one of the four bases
C
RNA possesses a double strand helix structure and contains uracil as one of the four bases
D
DNA possesses a single strand helix structure and contains uracil as one of the four bases
Correct Answer
Option B
Detailed Explanation
DNA is known for its double helix structure, where thymine pairs with adenine. RNA, on the other hand, is typically single-stranded and contains uracil instead of thymine.
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