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Identification of Bacteria

Identification of Bacteria
The organisms that can be acid-fast stained is

Nocardia
Tubercle bacilli
all of these
Lepra bacilli

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Identification of Bacteria
Which of the following is a substitute for crystal violet used in gram-staining procedure?

Safranin
Bromocresol green
Phenolpthalene
Methylene blue

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

Indole test
Voges-Proskauer test
Citrate test
Methyl red test

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Identification of Bacteria
What is the order of reagents used in the Gram stain?

Crystal violet, iodine, safranin, decolorizer
Safranin, crystal violet, decolorizer, iodine
Crystal violet, safranin, iodine, decolorizer
Crystal violet, iodine, decolorizer, safranin

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Identification of Bacteria
Gram staining was developed accidentally in 1884 by

Hans Christian Gram
Alexander Fleming
Joseph Christian Gram
Robert Gram

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Identification of Bacteria
Which of the following shows a positive urease test?

Proteus
Klebsiella
None of these
Both (a) and (b)

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