Based on the number of colonies you obtained on your 1:100,000 dilution plate, calculate how many original cells you had in cells/mL. Remember, you plated 100 μL, so there is an extra 10-fold dilution (colonies obtained were 400).
Added by Andrew J.
Step 1
Given dilution: 1:100,000 Extra dilution from plating 100 μL: 10-fold Total dilution factor = 100,000 x 10 = 1,000,000 Show more…
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