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Identification of Bacteria

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

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

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Identification of Bacteria
Which of the following inference(s) indicate(s) the ability of an organism to utilize citrate as a sole source of carbon in Simmon's citrate medium?

Blue colour
Appearance of growth
None of these
Both (a) and (b)

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

Lepra bacilli
Tubercle bacilli
Nocardia
all of these

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

Salmonella
Vibrios
Spirochaetes
Shigella

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

crystal violet
safranin
methyl red
phenolpthalene

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

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

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