Question
The correct statement with regard to the secondary structure of DNA/RNA is :
NEET
Chemistry
Biomolecules
2026
NEET 2026 (Cancelled)
NEET Chemistry Question (2026) — Solution
Options
- 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.
Answer
B. DNA possesses a double strand helix structure and contains thymine as one of the four bases.
Step-by-step solution
DNA possesses a double strand helix structure and contains adenine, guanine, cytosine, and thymine as its four bases. RNA possesses a single strand helix structure and contains adenine, guanine, cytosine, and uracil as its four bases. Thus, the statement that DNA possesses a double strand helix structure and contains thymine as one of the four bases is correct. Answer: DNA possesses a double strand helix structure and contains thymine as one of the four bases.
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