A Gene That Controls the Ability to Metabolize Lactose Is

question 117

Multiple Choice

A gene that controls the ability to metabolize lactose is common in people in some parts of the world and rare in other parts of the world. That gene is largely responsible for variations in the probability that a person will

• A) suffer from migraine headaches.
• B) enjoy dairy products as an adult.
• C) become severely depressed.
• D) have trouble sleeping when adjusting to a change in time zones.

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Definitions:

Adduction

To draw together toward the midline.

Midline

A term often used in anatomy to refer to the central line of the body or an organ, dividing it into right and left halves.

Angle

The inclination of two straight lines that meet in a point.

Straight Lines

The shortest distance between two points; a line with no curvature.