Virus Life Cycles

Lytic Cycle:

• Virus attaches to cell and injects genetic material.
• Viral genetic material forms a circle.
• New viral genetic material and proteins are produced and assembled.
• Cell lysis, releasing viruses.
• Repeat.

Lysogenic Cycle:

• Viral genetic material forms a circle.
• Viral genetic material inserts itself into the bacterial chromosone.
• Bacterium reproduces normally, replicating viral genetic material at each cell division.
• The viral genetic material may reproduce many times.
• Occasionally, the material separates from the bacterium causing a lystic cycle.