Dilution OOOOO OOOOO factor 10-6 10-7 10-8 10-9 10-10 Only 1 set of the above plates would have a number of plaques on it that would be both easy to count and high enough to be statistically relevant. Which dilution set would it be and about how many plaques would there be on the plates of that dilution set.

Basic Clinical Laboratory Techniques 6E
6th Edition
ISBN:9781133893943
Author:ESTRIDGE
Publisher:ESTRIDGE
Chapter2: Basic Hematology
Section2.13: Erythrocyte Sedimentation Rate
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 Shown below is a set of cell culture plates for a plaque assay.  The assay was performed by preparing dilutions of a virus stock with the dilution factor for each prepared dilution listed below the sample.  0.5 mls of each dilution was added to confluent (fully covered) monolayers of cells on each plate.  The virus used for the assay had a titer of 2 x 1010 Plaque forming units (PFU) per ml.

Only 1 set of the above plates would have a number of plaques on it that would be both easy to count and high enough to be statistically relevant.  Which dilution set would it be and about how many plaques would there be on the plates of that dilution set. 

Dilution
OOOOO
OOOOO
factor 10-6
10-7
10-8
10-9
10-10
Only 1 set of the above plates would have a number of plaques on it that would be both
easy to count and high enough to be statistically relevant. Which dilution set would it be
and about how many plaques would there be on the plates of that dilution set.
Transcribed Image Text:Dilution OOOOO OOOOO factor 10-6 10-7 10-8 10-9 10-10 Only 1 set of the above plates would have a number of plaques on it that would be both easy to count and high enough to be statistically relevant. Which dilution set would it be and about how many plaques would there be on the plates of that dilution set.
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