It is the expression of y gene in lac-operon

  • A

    Beta galactosidase

  • B

    Permease

  • C

    Transacetylase

  • D

    Lactase

Similar Questions

All of the following are part of an operon except

  • [NEET 2018]

Definitions/Explanation : Regulatorgene & Promotergene
 

In the medium where $E$. coli was growing, lactose was added, which induced the lac operon. Then, why does lac operon shut down some time after addition of lactose in the medium?

$A$ : Single $DNA$ dependent $RNA$ polymerase catalyses transcription of all types of $RNA$ in all except bacteria.
$R$ : Structural genes in bacteria are monocistronic.

In lac operon, $z$ gene codes for:

  • [NEET 2022]