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Lysogenic cycle example: lambda phage

The lysogenic cycle is the viral replication cycle that poreserves the host cell. Unlike the lytic cycle, not all viruses undergo the lysogenic cycle.

The lambda ($$\lambda $$) phage, which infects E. coli, can replicate via the lysogenic cycle. It has a DNA genome.

The $$\lambda $$ phage lysogenic cycle occurs in the following steps:

  1. Entry: The lambda phage injects its genetic material into the cell. The capsid remains on the outside of the host cell.
  2. Replication: The genome is inserted into the bacterial chromosome, forming part of the host genome.

Every time the host replicates and divides, the phage is also replicated and its genome is present in the daughter cells.