Genes That Affect Many Phenotypes Are

question 42

Multiple Choice

Genes that affect many phenotypes are

• A) polymorphic.
• B) pleiotropic.
• C) multifactorial.
• D) epistatic.
• E) polygenic.

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Definitions:

Physical Coordination

The ability to move different parts of the body smoothly and efficiently to achieve a particular action or task.

Cerebellum

The part of the brain at the back of the skull in vertebrates, which coordinates and regulates muscular activity.

Neurotransmitter

Chemical messengers that transmit signals across a chemical synapse from one neuron (nerve cell) to another 'target' neuron, muscle cell, or gland cell.

Reward System

The brain structures involved in reinforcing behaviors through pleasurable sensations, encouraging repetition of those behaviors.