Q. Medusa head appearance of the colonies may be due to

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Q. Food most often associated with emetic type of food poisoning caused by Bacillus cereus, is

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Q. Koch's postulates were satisfied for the first time with

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Q. Ascoli's thermoprecipition test helps in confirming the laboratory diagnosis of

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Q. Which of the following bacteria is susceptible to thiophen-2-carboxylic acid hydrazide?

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Q. Culture of tubercle bacilli may be positive if number of bacteria in the specimen is

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Q. Example of a Saprophytic bacteria is

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Q. Eugonic growth on Lowenstein-Jensen medium is produced by

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Q. The causative agent of Buruli ulcer is

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Q. False negative Mantoux test is observed in

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Q. Humans become infected with Mycobacterium tuberculosis most frequently by

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Q. Rough and buff colonies on LJ medium are characteristic of

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Q. Which of the following species of Mycobacterium is positive for nitrate reduction test?

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Q. The bacteria which is microaerophilic on primary isolation, is

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Q. Which of the following bacteria is sensitive to pyrazinamide?

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Q. The bacteria which cause(s) tuberculosis in man is/are

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Q. Which of the phage types of Mycobacterium tuberculosis occurs most frequently in India?

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Q. Members of the genus Mycobacterium are

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Q. A positive Mantoux test indicates an area of induration of

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Q. The process by which phage reproduction is initiated in lysogenized culture is called

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