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Identification of Bacteria

Identification of Bacteria
The gram-negative organisms is

None of these
Bacillus
Actinomyces
Clostridium

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

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

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

Tubercle bacilli
Lepra bacilli
all of these
Nocardia

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Identification of Bacteria
The production of sufficient acid by fermentation of glucose leads to decrease in pH such that pH of the medium falls below 4.5. Which of the following test can detect it?

Voges-Proskauer test
Methyl red test
Indole test
Citrate utilization test

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Identification of Bacteria
Gram staining was developed accidentally in 1884 by

Joseph Christian Gram
Alexander Fleming
Robert Gram
Hans Christian Gram

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

All of these
Proteus
Providencia
Morganella

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