Which of the Following E

Multiple Choice

Which of the following E. coli strains will synthesize permease in the presence of lactose and absence of glucose?

A) lacI^- lacP^- lacO⁺ lacZ⁺ lacY⁺
B) lacI^s lacP^- lacO⁺ lacZ^- lacY⁺/lacI⁺ lacP⁺ lacO⁺ lacZ⁺ lacY⁺
C) lacI^- lacP⁺ lacO⁺ lacZ⁺ lacY^-
D) lacI^- lacP⁺ lacO^c lacZ^-lacY^-/lacI⁺ lacP^- lacO⁺ lacZ^- lacY⁺
E) lacI⁺ lacP⁺ lacO^c lacZ⁺ lacY^-/lacI^- lacP⁺ lacO⁺lacZ^- lacY⁺