A 100 Ml Sample of Water Is Filtered Through a Sterile

question 49

Multiple Choice

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

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