The Best Description of the Probable Role That Genes Play

question 21

Multiple Choice

The best description of the probable role that genes play in behavioral disorders is that

• A)a single gene causes each of these disorders.
• B)the same disorder may be caused by a single gene in one individual,and solely by an environmental factor in another.
• C)single genes with major influences as well as small inputs from common gene variants contribute to susceptibility to behavioral disorders,perhaps requiring environmental triggers.
• D)variants of the same gene underlie major depressive disorder,bipolar disorder,anxiety disorder,eating disorders,and schizophrenia.

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Definitions:

Receptor Sites

Specific locations on the surface of a cell or within the central nervous system where neurotransmitters bind to trigger a response.

Sleep

A naturally recurring state of rest for the mind and body, characterized by altered consciousness and reduced sensory and muscle activity.

Mood

A temporary state of mind or feeling that can affect an individual's perception, behavior, and cognitive functions.

Appetite

The natural desire to satisfy a bodily need, especially for food.