Monday, January 16, 2017

Viruses and Monerans

Note that the evolution retest will take place next block
Today you will go over the Introduction to Microbiology Notes, which cover Virus, and Monerans, with a mention of unicellular fungi.  We will likely only have time to review the lytic and lysogenic cycle today.

You can also continue with your notes on microbiology.  

  • 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

video shows lytic cycle

 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.