Classify the following descriptions based on what type of operon is described. Choices may be used more than once or not at all. trp Operon Repressor is typically unable to attach to the operator When substrate is present, the operon is turned off When repressor is bound, enzymes are not produced When repressor is bound, enzymes are not produced Repressor typically able to attach to operator lac Operon When repressor is bound, enzymes are produced When repressor is bound, enzymes are not produced When substrate is present, the operon is turned on When substrate is present, the operon is turned on Repressor typically able to attach to operator When substrate is present, the operon is turned off Reset