NEET2026ChemistryBiomoleculesActual
The correct statement with regard to the secondary structure of DNA/RNA is :
Options
- ARNA possesses a single strand helix structure and contains thymine as one of the four bases.
- BDNA possesses a double strand helix structure and contains thymine as one of the four bases.
- CRNA possesses a double strand helix structure and contains uracil as one of the four bases.
- DDNA possesses a single strand helix structure and contains uracil as one of the four bases.
Correct 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.