You Are Studying a Cell's Response to a Signal

Multiple Choice

You are studying a cell's response to a signal.After the cellular receptor binds the signal (ligand) , you measure several responses.A transcription factor in one signal transduction pathway is inhibited, and an enzyme in a different signal transduction pathway is activated.This is an example of

A) signal transduction.
B) signal amplification.
C) crosstalk.
D) G protein signaling.
E) inactivation.