Which of the Following Statements Best Describes the Effect of a Mutation

question 25

Multiple Choice

Which of the following statements best describes the effect of a mutation that knocks out the GTPase activity of a G protein?

• A) The concentration of available GTP would decrease.
• B) The number of G proteins in the cell would increase.
• C) The G protein would be inactivated by a G protein-coupled receptor/signal molecule complex.
• D) The G protein would always be active.

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Definitions:

Motor Skills

Abilities required to perform movements and tasks, involving the coordination of muscles and the nervous system.

Cerebellum

A region of the brain that plays an essential role in motor control, and also involves in some cognitive functions such as attention and language, and in regulating fear and pleasure responses.

Posture

The way in which an individual holds their body while standing, sitting, or lying down, important for health and ergonomics.

Action Potential

A short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls, allowing neurons to communicate.