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Identification of Bacteria

Identification of Bacteria
Which of the following is a primary stain for acid fast staining of mycobacteria?

Methylene blue
Crystal violet
Carbol fuchsin
Geimsa

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Identification of Bacteria
Gram staining was developed accidentally in 1884 by

Alexander Fleming
Robert Gram
Hans Christian Gram
Joseph Christian Gram

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Identification of Bacteria
The primary stain of Gram's method is

crystal violet
phenolpthalene
safranin
methyl red

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Identification of Bacteria
Which of the following organisms can be demonstrated with silver impregnation method?

Vibrios
Salmonella
Shigella
Spirochaetes

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Identification of Bacteria
The process of Gram staining is based on the ability of bacterial cell wall

to retain part of both dyes
none of above
to retain the crystal violet dye during solvent treatment.
to retain the safranin dye

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Identification of Bacteria
Which of the following(s) is/ are oxidase-positive bacteria?

Pseudomonas
Vibrio
All of these
Neisseria

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