Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson

تمرين 16

The response to signaling through G protein-coupled receptors can vary in different cells because
A) all receptors act through the same G protein.
B) different isoforms of a receptor bind the same ligand but activate different effectors.
C) the amount of receptor in the membrane differs in different cell types.
D) different receptors can activate the same effector.