Biology, 27.06.2019 04:30 frankgore7836

Suppose you need to know the cell concentration of a bacteria culture which will be used for genetic transformation, so you decide to spread a plate. you make a 500-fold dilution and take 200îľl of the cell suspension to spread on a plate. after incubation, 85 single colonies were found on the plate. what is the cell concentration of the original bacteria culture?

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