Which of the following acts as an inducer for the $lac$ operon in $Escherichia$ $coli$?

  • A
    Lactose
  • B
    Promoter gene
  • C
    $\beta$-galactosidase
  • D
    $i$ gene

Explore More

Similar Questions

The regulation of the $lac$ operon by a repressor is known as:

Which one of the following sets contains enzymes coded by the structural genes of the $lac$ operon of $E. coli$?

Write a short note on the lac operon.

If $E. coli$ is grown in a culture medium containing both glucose and lactose as carbon sources,when will its $lac$ operon be in the 'switch on' state?

Gene regulation governing the lactose operon of $E. coli$ that involves the $lac I$ gene product is:

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo