Skin Color Is Coded for by Several Different Genes Which

question 13

Multiple Choice

Skin color is coded for by several different genes which results in a range of skin colors from very dark to very light. This is an example of

• A) a multifactorial trait.
• B) polygenic inheritance.
• C) pleiotropy.
• D) codominance.
• E) incomplete dominance.

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Definitions:

Sympathetic

Part of the autonomic nervous system that activates what is often termed the fight or flight response.

Peripheral Nervous System

The part of the nervous system that consists of nerves and ganglia outside of the brain and spinal cord, responsible for connecting the central nervous system to the rest of the body.

Sensory Neurons

Nerve cells responsible for converting external stimuli from the organism's environment into internal electrical impulses.

Interneurons

Specialized neurons that act as intermediaries, transmitting impulses between other neurons, particularly within the brain and spinal cord.