Lab 4 Prelab - This is the infectious agent. 7. Prepare a...

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John Malloy Blake Brown BMZ115 – Tzvia Cuperman September 27, 2010 Proposed Solution to Catfish Problem 1. Perform serial dilution on clean water sample. 2. Plate the dilution on an agar plate in order to produce bacterial colonies. 3. Perform gram stains on the resulting colonies. 4. Repeat steps 1 through 3 with the contaminated water sample. 5. Using a compound microscope, examine the stained bacteria and determine how the contaminated sample differs from the clean sample. 6. Make note of which bacteria is present in the contaminated sample, but not present in the clean sample.
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Unformatted text preview: This is the infectious agent. 7. Prepare a sample of contaminated water for each antibacterial given: penicillin, ampicillin, and colistin sulfate. 8. Put one antibacterial into each contaminated water sample and repeat steps 1 through 3 with these samples. 9. Examine each new gram stained sample to see if the infectious agent is, or is not, present. 10. After finding the sample that no longer has the infectious agent, take note of which antibacterial was mixed with the water sample. This antibacterial will be used to stop the infection....
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Lab 4 Prelab - This is the infectious agent. 7. Prepare a...

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