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Streak Plate Method


 Student assignment: 


  1. You are given with a "pure" culture of E.coli.
  2.  a.  What can you do to verify its purity?

     b.  If the culture was not pure what would you notice?

  3. When you observed your streak plate there was lot of undesired colonies growing in it? What might be the common mode of contamination?
  4. What is meant by a Bacterial Colony?
  5. What is meant by Bacterial Growing Media?
  6. After streak plate is done the plates are incubated upside down. What happens if it is kept upright for incubation?    

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