microbiology MCQs – Page 13

Practise focused microbiology questions with marked answers for exam preparation and subject revision.

microbiology Mcqs

241. Reynolds Braude phenomenon is shown by ___________________?
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A. Cryptococcus

B. Candida albicans

C. Aspergillus

D. Mucor

242. Schuffners dots are seen in infection due to_______________?
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A. Plasmodium falciparum

B. Plasmodium malariae

C. Plasmodium vivax

D. Plasmodium ovale

243. True about Toxaplasma gondi is, it is carried by_______________?
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A. Rats

B. Cow

C. Dogs

D. cats

244. Out of the following hypersensitivity reactions, in which type a single dose of the antigen can act as both the sensitizing and shocking dose_______________?
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A. Arthus reaction

B. Anaphylaxis

C. Serum sickness

D. Contact dermatitis

245. Immunoglobulin crossing placenta is_________________?
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A. Ig M

B. Ig A

C. Ig G

D. Ig D

246. Which of the following viruses does not infect salivary glands ?
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A. HIV

B. Orthomyxovirus

C. Hepatitis C

D. Echo virus

247. Function of Ig A is________________?
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A. Kills virus infected cells

B. Activates macrophages

C. Circulating antibody

D. Acts as a mucosal barrier for infection

248. Opportunistic infection is caused by___________________?
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A. Mucor

B. Penicillium

C. Aspergillus

D. All of the above

249. Which stage of plasmodium vivax is infective to mosquito______________?
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A. Zygote

B. Gametocyte

C. Merozoite

D. Sporozoite

250. Dematophytes are fungi infecting________________?
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A. Nails, hair and skin

B. Systemic organs

C. Subcutaneous tissue

D. Superficial skin and deep tissue

251. A woman with infertility receives an ovary transplant from her sister who is an identical Twin. What type of graft it is ?
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A. Isograft

B. Allograft

C. Xenograft

D. Autograft

252. Portal of entry of poliovirus in mainly_______________?
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A. Nasal mucosa

B. Gastrointestinal tract

C. Lung

D. Skin

253. Most sensitive test for antigen detection is_______________?
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A. ELISA

B. Passive hemaglutination

C. Immunoflourescence

D. Radioimmuno Assay

254. Viruses can be isolated from clinical samples by cultivation in the following except_______________?
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A. Chemically defined media

B. Animals

C. Embryonated eggs

D. Tissue culture

255. All of the following infections may be transmitted be dental instruments except____________?
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A. HIV

B. Hepatitis E

C. Hepatitis B

D. Hepatitis C

256. Following are the characteristics of Cryptococcus neoformans EXCEPT________________?
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A. Basidiomycetes yeast

B. Melanin production related to virulence

C. Causes meningitis

D. Noncapsulated fungus infecting man

257. Which of the following correctly indicates the infectivity of hepatitis virus in human ?
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A. HBeAg

B. Anti-HBS

C. Anti-HBC

D. HBCAg

258. All are oncogenic except________________?
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A. EB virus

B. Varicella zoster virus

C. Papilloma virus

D. Herpes simplex virus

259. Phase contrast microscopy is based on principle of__________________?
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A. Different refractive indices of object

B. Light attenuation

C. Light scattering

D. Different reflective indices of object

260. Virus is cultured in_______________?
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A. Nonembryonated egg

B. Saubourds agar

C. Embryonated egg

D. Rogosa medium

Showing 241 to 260 of 502 mcqs