Biomolecules Question 9
Question: The reason for double helical structure of DNA is the operation of:
Options:
A) Electrostatic attractions
B) van der Waals forces
C) Dipole - Dipole interactions
D) Hydrogen bonding
Show Answer
Answer:
Correct Answer: D
Solution:
[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.
BETA
