Question

If you were given a bacterial strain with a mutation in the promoter region of the trp operon the most likely effect would be?

Answer 1

Step-by-step explanation:

The trp operon would be expressed at maximum levels in the absence of tryptophan, since the trp repressor would be unbound and the mutant leader region would allow full expression. b) A lacI-lacZ fusion gene has been identified that produces a chimeric protein with both repressor and ß-gal function.