A cluster of prokaryotic genes under the control of one regulatory sequence is called a(n)
A) repressor.
B) promoter.
C) operon.
D) operator.
E) regulator gene.

Question

Quizplus · Accepted Answer

A cluster of prokaryotic genes under the control of one regulatory sequence is called an operon. Repressor is a protein that binds to the operator of an operon and prevents gene expression. Promoter is a sequence of DNA that initiates transcription of a gene. Operator is a region of DNA that acts as an on/off switch for gene expression. Regulator gene codes for a protein that controls the expression of one or more genes.

A Cluster of Prokaryotic Genes Under the Control of One