The lac operon consists of

  • [AIPMT 2010]
  • A

    four regulatory genes only

  • B

    one regulatory gene and three structural genes

  • C

    two regulatory genes and two structural genes

  • D

    three regulatory genes and three structural genes.

Similar Questions

In lac operon model; repressor protein binds to which site

In lac operon, $z$ gene codes for:

  • [NEET 2022]

Select the two correct statements out of the four $(i-iv)$ given below about lac operon.

$i.$ Glucose or galactose may bind with the repressor and inactivate it.

$ii.$ In the absence of lactose, the repressor binds with the operator region.

$iii.$ The z-gene codes for permease.

$iv.$ This was elucidated by Francois Jacob and Jacque Monod.

Repressor protein is formed from

Definitions/Explanation : Regulatorgene & Promotergene