An operator in the operon model is?

a. a sequence of DNA bases that turns an operon on or off.


b. a sequence of DNA that codes for a metabolic enzyme.


c. the metabolite that combines with represor.


d. the inducer that combines with operon

An operator in the operon model is?
a.





An operator is a DNA sequence that binds to a repressor protein if certain conditions exist, turning expression of the operon off.





Operators DO NOT bind to activator proteins. These bind to sequences around the promoter.
Reply:a. An operator is a sequence of DNA that binds a repressor or activator protein, allowing the operon to be controlled and be turned on or off in response to various stimuli.