When Bacteriophage $\lambda$ Lysogeny Terminates and Lytic Growth in E

Multiple Choice

When bacteriophage $\lambda$ lysogeny terminates and lytic growth in E. coli cells begins, ____ is inactivated leading to unoccupied O_R sites. _____ is produced, ultimately resulting in DNA replication.

A) Cro; cI
B) cI; Cro
C) cII; Cro
D) cI; cII
E) none of the above