For an estimation of microbial population experiment, you obtained the following results: A. 1000X dilution with 0.1 mL sample volume - 470 colonies B. 10000X dilution with 0.1 mL sample volume - 250 colonies C. 100000X dilution with 0.1 mL sample volume - 100 colonies D. 1000000X dilution with 0.1 mL sample volume - 12 colonies For each set of results, determine if the samples are countable plates, and for only the countable plates, calculate the CFU/mL for those plates. For plates that are not countable, please state that and do not perform the calculation (please note that calculating the CFU/mL for a plate that is not countable will be marked as incorrect).

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Microbial Isolation

Isolation of the microorganisms in microbiology is the process of developing a pure culture by separating one species of microbe from a mixture of many other species. A pure culture is a culture that contains only one species of microbe.