How is a prophage created?

  •  Through infection of a bacterial cell with a virulent bacteriophage
  •  Through excision of bacterial DNA and active lytic replication of a bacteriophage
  •  Through infection of a bacterial cell with lambda phage, lacking the lambda repressor
  •  Through activation of the recA gene product of an exogenote
  •  Through site-specific recombination of a temperate phage and bacterial DNA