Microbiology 020 - General Microbiology » Spring 2021 » Lab Quiz 2 Gram Stain
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Question #1
What color is a Gram -?
A.
Purple
B.
Blue
C.
Green
D.
Red
Question #2
What dyes are used in a Gram stain?
A.
Crystal violet, methylene blue
B.
Crystal Violet, Safranin
C.
Crystal Violet, Safranin, Crystal violet, methylene blue and Acetone/alcohol
D.
Acetone/alcohol
Question #3
What is the decolorizer/ destain for the Gram stain?
A.
acetone/alcohol
B.
acid/ acetone
C.
acid/alcohol
D.
acetone/phenol
Question #4
Which ingredient sets the stain?
A.
Iodine
B.
Crystal violet
C.
Safranin
D.
Acetone/alcohol
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