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Identification of Bacteria

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

methyl red
phenolpthalene
crystal violet
safranin

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

Crystal violet
Carbol fuchsin
Methylene blue
Geimsa

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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 safranin dye
to retain the crystal violet dye during solvent treatment.

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

All of these
Pseudomonas
Vibrio
Neisseria

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Identification of Bacteria
Gram staining was developed accidentally in 1884 by

Hans Christian Gram
Joseph Christian Gram
Robert Gram
Alexander Fleming

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Identification of Bacteria
Production of acetoin can be detected by which of the following tests?

Indole test
Methyl red test
Citrate test
Voges-Proskauer test

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