Discussion
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- Question
In Yersinia pestis, capsule is best demonstrated in cultures grown at
Options- A. 25°C
- B. 29°C
- C. 37°C
- D. 45°C
- Correct Answer
- 37°C
- 1. Which of the following determine the pathogenicity of Yersinia pestis?
Options- A. V and W antigens
- B. F1 envelope antigen
- C. Production of pigmented colonies on haemin containing media
- D. All of these Discuss
- 2. Verotoxin 1 of Escherichia coli is similar to
Options- A. cholera toxin
- B. shiga toxin
- C. heat-stable enterotoxin of E. coli
- D. heat-labile enterotoxin of E. coli Discuss
- 3. The media which serve(s) as enrichment media for Salmonella is/are
Options- A. Tetrathionate broth
- B. Brilliant green tetrathionate broth
- C. Selenite-F broth
- D. All of these Discuss
- 4. The reaction(s) that is/are usually positive in Escherichia coli, is/ are
Options- A. Glucose fermentation
- B. Indole reaction
- C. Methyl red reaction
- D. All of these Discuss
- 5. The technique(s), used for the assay of heat-labile enterotoxin produced by Escherichia coli, is/are
Options- A. Steroid production in Yl mouse adrenal cell culture
- B. Morphological changes in Chinese hamster ovary
- C. Enzyme-linked immunosorbent assay
- D. All of these Discuss
- 6. The most common cause of urinary tract infection in the community is
Options- A. Klebsiella pneumoniae
- B. Proteus vulgaris
- C. Escherichia coli
- D. Citrobacter freundii Discuss
- 7. The agent(s) which can cause plague is/are
Options- A. Yersinia pestis
- B. Proteus mirabilis
- C. Pseudomonas aeruginosa
- D. All of these Discuss
- 8. The bacteria that is negative for fermentation of mannitol is
Options- A. S flexneri
- B. S boydii
- C. S dysenteriae
- D. S sonnei Discuss
- 9. Spirochaetes exhibit
Options- A. corkscrew-like rotatory movement
- B. flexion and extension motility
- C. translatory motion
- D. all of the above Discuss
- 10. Which of the following serotypes of Salmonella can cause gastroenteritis?
Options- A. S enteritidis
- B. S newport
- C. S typhimurium
- D. All of these Discuss
Spirochacter and Enterobacteriaceac problems
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Correct Answer: All of these
Correct Answer: shiga toxin
Correct Answer: All of these
Correct Answer: All of these
Correct Answer: All of these
Correct Answer: Escherichia coli
Correct Answer: Yersinia pestis
Correct Answer: S dysenteriae
Correct Answer: all of the above
Correct Answer: All of these
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