Which Factor Contributes to the Strength of the Intermolecular Interaction

question 171

Multiple Choice

Which factor contributes to the strength of the intermolecular interaction between two DNA strands in a double helix?

• A) Hydrogen bonds between purines and pyrimidines
• B) Phosphodiester bonds between the nitrogenous bases
• C) Strong hydrogen bonds between the sugar and phosphate groups
• D) Its double-helix shape
• E) The direct bonding of the base to the phosphate molecule

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