Genetic Variation Refers to

question 56

Multiple Choice

Genetic variation refers to

• A) differences between individuals caused by the genes they inherit.
• B) traits that are caused by the environment, not by genes.
• C) traits that are caused by genes, not by the environment.
• D) both a and

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Definitions:

Norepinephrine

A neurotransmitter and hormone important in the regulation of blood pressure, sleep, alertness, and mood.

GABA

Gamma-Aminobutyric Acid, an inhibitory neurotransmitter in the brain that helps regulate neuronal excitability and plays a key role in reducing anxiety and promoting relaxation.

Two-Factor Theory

The most influential theory of fear and phobias during the 1960s and 1970s. The model proposed that fears are acquired by classical conditioning, but maintained by operant conditioning.

Little Albert

The subject of a famous psychology experiment by John B. Watson which demonstrated that emotional responses could be conditioned in humans.