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Wednesday, January 20, 2016

lytic cycle animation and summary



the following notes are copyright to Zack Smith and retrieved from https://firmitas.org/Viruses.html

STEPS TO THE LYTIC CYLE: memorize AESAR
  • Attachment
  • Entry & degradation of host's DNA
  • Synthesis of new viruses 
    • duplication of virus' genetic material
    • creation of new virus parts
  • Assembly of parts into new viruses
  • Release of new viruses

steps to the lysogenic cycle:  memorize AEIM
  • Attachment
  • Entry (no degradation of host DNA)
  • Integration using integrase enzyme
  • Mitosis
    • Host+virus DNA duplicated
    • cytokinesis
  • A virus that uses the lysogenic life cycle is termed either a provirus or prophage. What causes various proviruses to shift to the lytic cycle is not completely understood, but in some cases stress is the stimulus.