Lysogenic Cycle

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Step 1: Adsorption
Attachment of adsorption of tail fibres of the phage on to a specific receptor site on the bacterial cell wall.

Step 2: Injection
Injection of viral genome into the host through the hollow tubes of the tail.

Step 3: Integration of viral genome to the host genome.
After entry of viral genome, it gets integrated into the bacterial genome of the host. The viral genome integrated into the bacterial genome is termed Prophage.

Step 4: Viral genome synthesis
Viral genome replicates along with the bacterial genome replication and pass on to the daughter cells.

Step 5: Induction of Lytic cycle
Occasionally, integrated viral genome detaches and released into the bacterial cytoplasm.  This dissociation is called induction and Lytic cycle is followed releasing mature lysogenic phages. Induction can be induced using UV rays or heat treatment.

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