In DNA the Phosphate Groups Are on the Outside of the Helix.Why

question 24

Multiple Choice

In DNA the phosphate groups are on the outside of the helix.Why does this stabilize the structure?

• A) ionic interactions with the solvent
• B) hydrogen bonding with itself
• C) covalent binding to the solvent
• D) It does not stabilize the structure.

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Definitions:

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Over-center Adjustment

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