Lab Data in Canvas

OF-Glucose Test

I

Green Fluorescent Protein (GFP). E. coli that have the gene for GFP will fluoresce under UV light.

E. coli are considered lac⁺. Why is β-galactosidase produced by the E. coli culture grown in the lactose broth and not in the glucose or glucose + lactose broth?

Nitrate reagent turns red in the presence of nitrite ion (NO₂^-).
Bacteria were inoculated into nitrate broth. Which tube shows that the bacteria produced nitrate reductase?