Q. Roll-tube technique is used to isolate ___________

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Q. In pour-plate method,the medium should be maintained at what temperature?

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Q. Which of the following method can be used to determine the number of bacteria quantitatively?

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Q. Dilution of the mixed culture is a common step in all the three methods: the streak-plate,the spread-plate and the pour-plate technique.

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Q. Which of the following are not performed in lyophilization?

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Q. Which of the following is a function of cryoprotective agents?

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Q. What is the temperature of liquid nitrogen?

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Q. Nichrome loop wire is used in which of the following techniques?

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Q. Which device is used to pick a single bacterial cell from a mixed culture?

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Q. The National Collection of Type Cultures is situated in ____________

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Q. The American Type Culture Collection, located in Rockville, Maryland in the year 1980 has a collection of bacterial strain in what numbers?

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Q. Which of the following has a larger diameter?

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Q. Surface texture of strains are related to virulence.

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Q. What is the color of colonies of Staphylococcus aureus?

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Q. Pyoverdin is which type of pigment?

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Q. Growth in broth cultures occurs mainly in the form of __________

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Q. Which bacteria among the following produces a water-insoluble pigment?

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Q. Which of the following bacteria can grow in acidic pH?

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Q. Cell size and cell number can be measured using

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Q. Which of the following is used for the proper maintenance and preservation of pure cultures?

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