A) Electrostatic attractions
B) van der Waals forces
C) Dipole - Dipole interactions
D) Hydrogen bonding
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.You need to login to perform this action.
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