A sample of milk is tested for its bacterial content in a plate count assay. A one-milliliter sample of the milk is diluted in a 1:10 dilution series. One milliliter of the third dilution tube is plated in a pour plate. After incubation, the plate has 54 colonies, indicating that the original milk sample contained
a. 540,000 cells.
b. 540 cells.
c. 54,000 cells.
d. 54 cells.
e. 5,400 cells. c. 54,000 cells.
Answer: C) ,
3RD DILUTION PLATE, 10^-3, 54=54000
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