Phage genome site on bacterial chromosome resulted in the structure

Prophage is the DNA of bacteriophage that is repressed for lytic functions and is maintained in the host bacterium in a stable state. The phage genome is integrated into DNA of its bacterial host and may be replicated along with the host DNA, as in the case or bacteriophage lamda or may be maintained as extra chromosomal DNA, as in the case for bacteriophage, lambda $P_1$.