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Identification of Bacteria

Identification of Bacteria
The gram-negative organisms is

None of these
Clostridium
Bacillus
Actinomyces

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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?

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

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Identification of Bacteria
What is the colour of gram -postive bacteria on a gram staining?

Pink
Green
Colourless
Purple

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Identification of Bacteria
Which of the following(s) show(s) positive results for phenylalanine deaminase test?

Providencia
Morganella
Proteus
All of these

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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, decolorizer, safranin
Crystal violet, iodine, safranin, decolorizer

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

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

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