Suppose Mutation and Selection No Longer Occurred in a Small

question 119

Multiple Choice

Suppose mutation and selection no longer occurred in a small, isolated population of nematodes.Which process would most likely continue operating, and what would be the most likely effect on the extent of genetic variation?

• A) Gene flow would lead to an increase in genetic variation.
• B) Gene flow would lead to a decrease in genetic variation.
• C) Genetic drift would lead to an increase in genetic variation.
• D) Genetic drift would lead to a decrease in genetic variation.
• E) Genetic drift would operate but would have no effect on genetic variation.

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Definitions:

General Arousal

A physiological and psychological state of being awake or reactive to stimuli, encompassing both physical and emotional components.

Background Emotions

The underlying, often unconscious emotional states that influence individuals' perceptions and behaviors.

Primary Emotions

Basic emotions that are hard-wired into the human brain, universally experienced and recognized across cultures, such as joy, anger, fear, and sadness.

Secondary Emotions

Complex emotional reactions that develop based on one’s feelings about primary emotions, such as shame about feeling fear.