An inducible operon is bound by a repressor and turned off under normal conditions. How could this operon be quickly turned on?
a.An inducer molecule binds to and inactivates the repressor
b.An activator protein is allosterically activated and outcompetes the repressor on the operator
c.Transcription of the repressor protein is inactivated
d.An inducer molecule outcompetes the repressor on the operator
e.A second repressor protein is activated, and it binds to and represses the first repressor