Question

Consider the haplotype for the bacterial lac operon: I-O+Z+. There is also a plasmid with the haplotype: I+OcZ-. For all of the questions below, assume there is no glucose and no inducer.

Functional beta-galactosidase will be produced in this cell:____.
A) True
B) False

Answer 1

false

Step-by-step explanation:

In the presence of glucose , the lac operon is in inactive state. In the presence of lactose ,and absence of glucose, the β-galactosides enzyme catalyzes the hydrolysis of lactose, a disaccharide, into glucose and galactose through the breaking of a glycosidic bond, and in turn, operon become active.

lacZ i= β-galactosidase.

LacO = the binding site for the repressor.: Operator

LacI = the gene encoding for the lac repressor protein:Operator