what is lac operon | inducer , repressor | gene regulation | typtophan |

Lac operon is

Lac Operon is induced by

In E.coli, lac operon is induced by

Regulation of lac operon by repressor is called

In operon concept, regulator gene functions as:

Read statements a-d . (a) In transcription, adenosine pairs with uracil (b) Regulation of lac operon by repressor is positive regulation (c) Human genome has approximate 50,000 genes (d) Haemophilia is sex-linked recessive disease How many of above statement are correct ?

In an inducible operon, the genes are

In lac operon the lac mRNA

Assertion :- Regulation of lac operon by repressor is referred to as positive regulation. Reason : Regulation of lac operon can also be visualized as regulation of enzyme synthesis by its product.

Operon model' for gene regulation in bacteria was proposed by