In Operon concept, regulator gene functions as
Repressor
Regulator
Inhibitor
All of these
In an inducible operon, the genes are
Which of the following is required as inducer(s) for the expression of Lac operon?
Functioning of structural genes is controlled by
Genes that are involved in turning on or off the transcription of a set of structural genes are called
Which enzyme will be produced in a cell if there is a nonsense mutation in the lac $Y$ gene?