A 100 ml sample of water is filtered through a sterile membrane, and the membrane is transferred to a plate of m-Endo agar.  Following overnight incubation at 37°C, 57 green metallic colonies appear.  The coliform count is

A. 5700 per 100 ml.
B. 0.57 per 100 ml.
C. 57 per 100 ml.
D. too numerous to count.


Answer: C

Biology & Microbiology

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