Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 Life Sciences Fundamental Processes Control of gene expression
The lac operon in E coli is controlled by both the lac repressor and the catabolite activation protein CAP. In an experiment with Lac Operon, the following observations were made:
A. cAMP levels are high.
B. repressor is bound to the allolactose
C. cap is interacting with RNA polymerase
Based on the observations above, which of the following conclusions is most appropriate?
1
Galactose is absent and lactose are present.
2
Glucose is present and lactose is absent.
3
Both are present
4
Glucose is absent and lactose is present.
5
Question Not Attempted