cell chromosome DNA A Figure 21-2 The lysogenic cycle of bacteriophage
Figure 21-2 The lysogenic cycle of a bacteriophage
The lysogenic state can switch to lytic growth, called induction Excision of the prophage DNA DNA replication Coat proteins expression Lytic growth
◼ The lysogenic state can switch to lytic growth, called induction. Excision of the prophage DNA DNA replication Coat proteins expression Lytic growth
Figure16-24③m Growth and induction of n rogen bacterial A repressor a genome lytic growth induction lysogenic growth new phage
Figure 16-24 Growth and induction of λ lysogen
Assays of phage growth a> Progagate phage: by growth on a suitable bacterial host in liquid culture Quantify phage: plaque(嗜菌斑) assay
Assays of Phage Growth ➢Progagate phage: by growth on a suitable bacterial host in liquid culture. ➢Quantify phage: plaque (嗜菌斑) assay Bacteriophage
Progagate phage >Find a suitable rMIX FILTER BACT host cell that ONLY supports the growth of the virus )The mixture of viruses and BACtERIA bacteria are filtered VIRUS through a bacterial STERILE FLASK VIRUS proof filter ONLY
Progagate phage ➢Find a suitable host cell that supports the growth of the virus. ➢The mixture of viruses and bacteria are filtered through a bacterialproof filter