A student makes a series of dilutions similar to experiment 15. The original culture contains 20 mL. For the first dilution, 0.1 mL is taken from the original culture and transferred to Tube A which contains 9.9 mL of water. Then 1 mL from Tube A is plated on Plate A and 0.1 mL from Tube A is plated on Plate B. After incubation, Plate A has 305 colonies and Plate B has 31 colonies. What is the total cfu in the original culture.
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Home » Physics » A student makes a series of dilutions similar to experiment 15. The original culture contains 20 mL. For the first dilution, 0.1 mL is taken from the original culture and transferred to Tube A which contains 9.9 mL of water.