Lysogenic and Lytic Cycles

• 1st step of Lytic Cycle

  Attachment- virus attaches to cell surface

  
• 2nd step of Lytic Cycle

  Injection (penetration)- virus injects nucleic acid into cell

  
• 3rd step of Lytic Cycle

  Replication (biosynthesis)- virus causes cell to produce viral components

  
• 4th step of Lytic Cycle

  Assembly (maturation)- pieces of the virus are put together to gorm a functional viral particle

  
• 5th step of Lytic Cycle

  Release- a viral enzyme causes the cell to disintegrate/break open, releasing viruses

  
• 1st step of Lysogenic cycle

  Attachment- Virus attaches to cell surface

  
• 2nd step of Lysogenic cycle

  Injection (penetration)- virus injects nucleic acid into cell

  
• 3rd step of Lysogenic cycle

  Integration- viral DNA integrates itself into a specific site of the host cell's DNA --> prophage

  
• 4th step of Lysogenic cycle (4B)

  Cell multiplication- cells copies itself and the viral DNA at the same time--> cell continues to grow and copy themselves indefinitely

  
• 5th step of Lysogenic cycle

  Lytic Cell- radiation, chemicals, stress.. can cause the prophage to become virulent - enter the destructive lytic cycle

  
• 6th Step entering into lytic cyle

  Release- a viral enzyme causes the cell to disintegrate/break open, releasing viruses