Bio 2010 - Microbiology » Fall 2021 » Gram Stain Technique (2)

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Question #1
Which of the following is the Gram's trapping agent?
A.   Crystal violet
B.   Safranin
C.   Acetone- Alcohol
D.   Loeffler's methylene blue
E.   Iodine
Question #2
You forgot to use the safranin in your Gram staining. Which of the following would be a possible consequence?
A.   Gram negative will not be stained
B.   Both Gram positive and Gram Negative will appear pink
C.   Both gram positive and Gram negative will appear purple
D.   Gram positive will turn purple

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