Mcq Subject: Microbiology

The predominant immunoglobulin in saliva is

A. IgA

B. IgD

C. IgE

D. IgG

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Neisseria infection are associated with ?

A. Deficiency of early complements

B. Deficiency of late complements

C. There is no such association

D. Any deficiency can be associated

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Modified Ziehl-neelsen staining is used for:

A. Mycobacterium tuberculosis

B. Mycobacterium bovis

C. Nocardia

D. All of the above

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Robe Koch assistant advised him to use agar instead of gelatin for solidifying culture media for cultivation of bacteria because

A. Agar has more nutrients

B. Gelatin melts at 37oC

C. Gelatin is not easily available

D. Agar is cheaper

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Drug of choice for Pneumocystis Pneumonia

A. Cotrimoxazole

B. Penicillin

C. Itraconazole

D. Ivermectin

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Twelve elderly residents living in an assisted care facility suffered from sinusitis, otitis media, and mild pneumonias during midwinter. Despite the fact that they had all received the 13-valent pneumococcal conjugate vaccine recently licensed for adults, S. pneumoniae was isolated from 10 of the patients. Which of the following is the best explanation for the pneumococcal infections?

A. Elderly patients do not mount good immune responses to vaccines

B. Some patients will not respond to the vaccine

C. The capsular type responsible was not present in the vaccine

D. The vaccine was defective

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Which among the following is an anaerobic bacteria?

A. Staph aureus

B. E. coli

C. Str. pneumoniae

D. Corynebacterium diphtheria

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Antigen binding site in immunoglobulin is

A. Variable region

B. Hypervariable region

C. Constant region

D. all

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In transmission of malaria, mosquito bite transfers?

A. Sporozoite

B. Merozoite

C. Hypnozoite

D. Gametocyte

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Patient presented with fever, coughing, headache. He developed rash on 3rd day, what is probable diagnosis ?

A. Measles

B. Mumps

C. Small pox

D. Chicken pox

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