Differential gene expression is caused by:
A) control of translation.
B) control of mRNA processing.
C) control of transcription.
D) control of replication.
E) None of the above.

Question

Quizplus · Accepted Answer

Differential gene expression is primarily controlled at the level of transcription, where regulatory proteins bind to DNA to either enhance or repress gene expression.

Answer: A and B 
 Control of translation and mRNA processing can also play a role in differential gene expression, but they are not the primary mechanisms for regulating gene expression. Control of replication does not affect gene expression.

Differential Gene Expression Is Caused By