The lactose analog isopropyl-$\beta$-D-thio-galactoside (IPTG)is often used to regulate gene expression systems in bacteria.IPTG does not act as a substrate for $\beta$-galactosidase,but can bind to,and inactivate,repressor.In this case,IPTG serves as a(n)
A)inducer.
B)repressor.
C)effector.
D)operon.

Question

Quizplus · Accepted Answer

IPTG is serving as an inducer, since it binds to the repressor and induces gene expression.

The Lactose Analog Isopropyl- β\betaβ -D-Thio-Galactoside (IPTG)is Often Used to Regulate Gene Expression Systems in Regulate

The Lactose Analog Isopropyl- $\beta$ -D-Thio-Galactoside (IPTG)is Often Used to Regulate Gene Expression Systems in Regulate