Answer:
Gene expression is a strictly controlled process that allows a cell to respond to changes in its surroundings. It serves as an on/off switch for controlling when proteins are created as well as a volume control for increasing or decreasing the amount of proteins produced.
The appropriate response is an opponent-process theory. Opponent-process theory is a mental and neurological model that records for an extensive variety of practices, including shading vision. This model was first proposed in 1878 by Ewald Hering, a German physiologist.