For the Helix in Double-Stranded B-Form DNA, the Majority of the Stability

question 14

Multiple Choice

For the helix in double-stranded B-form DNA, the majority of the stability can be attributed to:

• A) base-pairing interactions via H-bonds.
• B) interactions along the phosphate backbone.
• C) base-stacking interactions via van-der-Waals interactions.
• D) covalent bonds between adjacent bases in one strand.
• E) ionic interactions with metal ions.

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Definitions:

Maintenance Therapy

Ongoing treatment aimed at stabilizing a patient's condition and preventing relapse after initial successful treatment of a disease.

Tricyclic

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MAO Inhibitor

An antidepressant drug that prevents the action of the enzyme monoamine oxidase.

Tyramine

A chemical that, if allowed to accumulate, can raise blood pressure dangerously. It is found in many common foods and is broken down by MAO.