I have to do a serial dilution for plating bacteria, and I am given a sample...
I have to do a serial dilution for plating bacteria, and I am given a sample that has been diluted to 10-4 already. I will need to plate the 10-5 and 10-7 dilutions. What will be the steps I will have to do? Note: I cannot use any more tubes/saline outside of what I have been given.
Materials:
2 tubes labelled 10-5 and 10-7.
20ml of sterile saline
5 ml of the 10-4 diluted sample.
Sterile pipettes
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