Question: A bacterial inducible operon, similar to the lac operon, contains three regions (X,Y and Z) that …

A bacterial inducible operon, similar to the lac operon,
contains three regions (X,Y and Z) that are involved in coordinated
regulation of transcription . One of these regions is the operator,
one is a gene for a regulatory protein and the third is a
structural gene that produces an enzyme. In the table below, “+”
indicates that the structural enzyme is synthesizes and “-“
indicates that it is not produced. Use the information provided to
determine which gene is the operator, which produces the regulatory
protein and which produces the enzyme.