MCQ
The reason for double helical structure of $DNA$ is the operation of
- AElectrostatic attractions
- Bvander Waals forces
- CDipole - Dipole interactions
- ✓Hydrogen bonding
✓
Answer
Correct option: D.
Hydrogen bonding
d
The two polynucleotide chains of $DNA$ molecules are twisted around a common axis but run in opposite directions to form a right handed helix. The two chains are joined together by specific hydrogen bonds
The two polynucleotide chains of $DNA$ molecules are twisted around a common axis but run in opposite directions to form a right handed helix. The two chains are joined together by specific hydrogen bonds
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