In the lactose operon of Escherichia coli, what is the function of promoter

  • A

    Binding of Gyrase enzyme

  • B

    Binding of $RNA$ polymerase

  • C

    Codes for $RNA$ polymerase

  • D

    Processing of messenger $RNA$

Similar Questions

How many of the given statements $(i-iv)$ is/are correct?

$i.$ In transcription, adenosine pairs with uracil.

$ii.$ Regulation of lac operon by repressor is referred to as positive regulation.

$iii.$ The human genome has approximately $50,000\; genes.$

$iv. $ Haemophilia is a sex-linked recessive disease.

'Operon model' for gene regulation in bacteria was proposed by

Lactose operon produces enzymes

Jacob and Monad studied lactose metabolism in E. coli and proposed operon concept, which is applicable for

  • [AIPMT 2002]

$A$ : Lac operon exerts negative control only.
$R$ : The operator is occupied by aporepressor during regulation