Mcq Subject: Microbiology

HIV primarily infects?

A. CD4* cells

B. CD8+ cells

C. NK cells

D. All of these

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Graft from homozygotic twin is known as ?

A. Autograft

B. Isograft

C. Allograft

D. Xenograft

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Most potent stimulator of naive Tcells?

A. Mature dendritic cells

B. Follicular dendritic cells

C. Macrophages

D. B cell

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Which among the following is bile esculin positive and shows growth in 6.5% sodium chloride?

A. Streptococcus agalactiae

B. Streptococcus pneumoniae

C. Enterococcus faecalis

D. Streptococcus viridans

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Subtype of leprosy with maximum number of TH -1 cells –

A. TT

B. BB

C. LL

D. Borderline leprosy

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Incubation period of staphylococcal food poisoning is:

A. 4-6 hrs

B. 6-12 hrs

C. 12-18 hrs

D. 18-24 hrs

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IFN-a and IFN-b are produced by the virus-infected cell due to the interaction of virus nucleic acid with which of the following?

A. C3 (third component of complement)

B. Defensins

C. TLR pathway

D. IL-12

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L1 L2 L3 serovar of chlamydia trachomatis cause ?

A. Trachoma

B. Inclusion conjuctivitis

C. NGU

D. LGV

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When an antigen is administered for the first time to an animal or a human being who has never been exposed to it, the first antibody to develop-

A. IgG type

B. IgM type

C. IgA type

D. IgE type

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River blindness is caused by –

A. Onchocerca

B. Loa loa

C. Ascaria

D. B. Malayi

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