89401. Production of acetoin can be detected by which of the following tests?
89402. 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?
89403. What is the colour of gram -postive bacteria on a gram staining?
89404. What is the colour of gram-negative bacteria on a gram staining?
89405. Which of the following is a primary stain for acid fast staining of mycobacteria?
89406. The deinococci are gram-positive cocci and rods that are distinctive in their unusually great resistance to
89407. Which of the following shows a positive urease test?
89408. Which of the following(s) is/ are oxidase-positive bacteria?
89409. What is the order of reagents used in the Gram stain?
89410. Gram staining was developed accidentally in 1884 by
89411. Which of the following organisms can be demonstrated with silver impregnation method?
89412. Which of the following(s) show(s) positive results for phenylalanine deaminase test?
89413. The process of Gram staining is based on the ability of bacterial cell wall
89414. The gram-negative organisms is
89415. Catalase production is negative in which of the following?
89416. Which of the following is a substitute for crystal violet used in gram-staining procedure?
89417. 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?
89418. The organisms that can be acid-fast stained is
89419. Negative phase is observed in
89420. Method(s) that can be used to detect CMI is/are
89421. In which of the following cell mediated immunity (CMI) participates?
89422. Overactivity of Th cells may result into
89423. Which of the following lymphokine(s) is secreted by delayed-type-hypersensitivity cells?
89424. Which of the following is an example of autoimmune disease?
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