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प्रश्न
How does the operon function in the presence of lactose?
उत्तर
- Lactose induces the lac operon. The regulatory gene is activated when lactose is added to the bacteria's medium.
- The inducer binds to the repressor protein, rendering it inactive, allowing transcription of the operon.
- Thus, the lac operon is negatively regulated in this case.
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संबंधित प्रश्न
Short Answer Question:
Explain the role of lactose in ‘Lac Operon’.
A unit of lac-operon which in the absence of lactose, suppresses the activity of operator gene is
Give diagrammatic representation of Lac-operon in the presence of inducer.
Which of the following is TRUE with reference to Operon?
In which of the following conditions the lac operon in E. coli becomes "switched on"?
In lac operon concept of gene expression, allolactose acts as, ____________.
Lactose operon produces enzymes ______.
In lac operon, lactose is the substrate for enzyme beta-galactocidase and its regulates ______.
Select the correct pair.
The diagram given below represents the image of the cloning vector pUC 18. The gene of interest is inserted and ligated within the gene lacZ. The recombinant DNA is introduced in the host bacterial cell. Explain the method that would help in selection of recombinant colonies from non-recombinant colonies.
