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