The Two Strands of the Double Helix of DNA Are

question 56

Multiple Choice

The two strands of the double helix of DNA are held together by ________.

• A)hydrogen bonds
• B)covalent bonds
• C)dipole-dipole interactions
• D)ionic bonds
• E)sugar-to-phosphate bonds

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Definitions:

Proportion

A part, share, or number considered in comparative relation to a whole.

Americans

Residents or citizens of the United States of America.

Smoke

The visible vapor and gases emitted when a substance burns, often carrying particulates and harmful chemical compounds.

Awake

The state of being conscious and alert, often as opposed to being asleep.