Traits That ____ Tend to Display the All-Or-None Pattern of Phenotypic

question 160

Multiple Choice

Traits that ____ tend to display the all-or-none pattern of phenotypic expression.

• A)show simple dominance/recessiveness
• B)are codominant
• C)are polygenic
• D)are developed experientially via learning

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Definitions:

Prefrontal Cortex

An area at the front of the brain involved in complex behaviors, decision making, and moderating social behavior.

Nucleus Accumbens

A brain structure in the limbic system that plays a significant role in the influence of reinforcement on behavior; the neurotransmitter dopamine is central to the reinforcing quality of events.

Species-specific Defense Reactions

Innate defensive behaviors characteristic to a species, often triggered by specific threats or predators.

Danger

The possibility of suffering harm or injury; a situation involving exposure to risk.