What is the purpose of using stains? What microbial characteristics can one ascertain from a simple stain? Why is it necessary to make a heat-fixed smear, and what are the disadvantages of heat fixing? What is the best age for your culture when performing a Gram stain? Why?
Added by Timothy Z.
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Step 1: The purpose of using stains is to observe the morphology and arrangement of bacterial cells. Show more…
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Why is 18-24 hour culture necessary for a gram stain procedure? What are the advantages of using gram stain over simple stain?
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