5. River water samples are diluted to 10^-2, 10^-3, and 10^-4. You plate 500μl of each dilution, incubate overnight, and find that only the 10^-4 plate had isolated, countable colonies; however, colonies on the other plates are “Too Numerous To Count” (TNTC). (a) Calculate the CFU/mL if you counted 100 colonies on the 10^-4 plate. Show your work. (b) State a modification you could make to the protocol in order to obtain isolated, quantifiable colonies on all three agar plates.

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Clinical Pharmacology

Pharmacology is a discipline of medicine that studies how medications interact with the systems and processes of living organisms, focusing on drug action mechanisms as well as therapeutic and other purposes.