Which of the Following Is True

question 61

Multiple Choice

Which of the following is true?

• A) The two strands of a DNA molecule are held together by covalent bonds.
• B) A single strand within a DNA molecule is held together by hydrogen bonds.
• C) The bases on one strand of DNA are held to the bases on the other strand by hydrogen bonds.
• D) Hydrogen bonding between complementary base pairs causes the DNA molecule to twist into a spiral.

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Definitions:

Glycerol

A simple polyol compound forming the backbone of triglyceride molecules, also widely used in food and pharmaceuticals.

Monosaccharides

The simplest form of carbohydrates, consisting of a single sugar molecule such as glucose or fructose, that serves as a fundamental energy source for cells.

Blood

A vital fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.

Polyunsaturated

Referring to a type of fat found in fats and oils containing more than one double bond in their fatty acid chains, beneficial for heart health.