princevinslee8209 princevinslee8209

20-02-2024
Biology

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A sample was diluted by placing a 0.1 ml aliquot into 0.9 ml of diluent, and 1 ml of this dilution was pour-plated. after incubation, 217 colonies appeared. what is the cfu/ml in the original specimen?
a) 21.7 CFU/ml
b) 2170 CFU/ml
c) 217 CFU/ml
d) 2.17 CFU/ml

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