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2. Solution with listed bacteria, into filter,nucleic acids stick. Gene probs (specific to bacteria) added only binds in DNA has gene. What is this describing?

  • Hybridisation with synthetic probe
  • Hybridisation
  • Phage typing

3. What is the difference between Batch and Continuous?

  • Medium is added and culture broth removed throughout
  • Less culture media is used
  • More harmful bacteria are produced

4. Which of these steps requires O2 during fermentation of sugars?

  • Link Reaction
  • Krebs Cycle (pyruvate-->CO2 and H2O)
  • Glycolysis (glucose-->pyruvate)

5. Why is Salt Agar used as a selective media for S.aureus?

  • It kills all other bacteria apart from S.aureus
  • It increases pH so enzymes work better
  • It kills all the S.aureus
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