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MicrobiologyImmunology

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Q12650. Membrane attack complex (MAC) in complement system is:

A.C3b

B.C13

C.C5_9

D.C24

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MicrobiologyImmunology

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Q12651. Complement components are:

A.Lipids

B.Proteins

C.Lipoproteins

D.Polysaccharide

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MicrobiologyImmunology

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Q12674. True about widal test:

A.Anti-0 antibody persists longer

B.0 antigen of S. paratyphi is used

C.H-antigen is most immunogenic

D.Felix tube is used for 'H' agglutination lnar

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MicrobiologyImmunology

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Q12677. Clinical significance of Vi antigen of S. typhi is:

A.Helps in diagnosis

B.Highly immunogenic

C.Most important antigen for widal test

D.Antibody against Vi-antigen is used for diagnosis of carrier

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MicrobiologyImmunology

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Q12682. Absence of Vi-antibody in a typhoid patient has:

A.Good prognosis

B.Bad prognosis

C.No relation with prognosis

D.Indicates widal negative

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MicrobiologyImmunology

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Q12702. Diagnosis of rotavirus is by:

A.Stool antigen

B.Stool antibody

C.Stool culture

D.Blood antibody

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MicrobiologyImmunology

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Q12705. True about chlamydia are all except:

A.Obligate intracellular organism

B.Gram positive

C.Reticulate body is metabolically active

D.Replicate by binary fission

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MicrobiologyImmunology

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Q12707. Chlamydia pneumoniae causes causes:

A.LGV

B.Atherosclerosis

C.Inclusion conjunctivitis

D.Trachoma

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MicrobiologyImmunology

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Q12724. Binding of gp 120 causes:

A.Infection of target cell

B.Facilitation of co-receptor

C.Fusing of virus and target cell

D.None

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MicrobiologyImmunology

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Q12743. true about TRIAD congenital rubella syndrome

A.PDA, cataract and deafness is seen

B.Hepatosplenomegaly, mental retardation, deafness

C.Chorioretinitis, multiorgan failure, pneumonitis

D.None of these

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MicrobiologyImmunology

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Q12744. Weil felix reaction in scrub typhus is/are positive for:

A.OX -19

B.OX-2

C.Both OX -19 & OX-2

D.OX -K

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MicrobiologyImmunology

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Q12761. Most effective antibody for precipitation ?

A.IgM

B.IgG

C.IgA

D.IgD

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MicrobiologyImmunology

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Q12762. Specificity of antibody is dependent on ?

A.Fc portion

B.Fab region

C.Carboxy terminal

D.All of the above

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MicrobiologyImmunology

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Q12764. Antibody specificity is due to ?

A.Amino acid sequence at H chain

B.Amino acid sequence at L chain

C.Amino acid at carboxy terminal

D.Amino acid sequence at the amino terminal

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MicrobiologyImmunology

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Q12778. Griffth classification is base on

A.'C'-carbohydrate

B.M, T, R antigens

C.Type of hemolysis

D.0, requirment

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MicrobiologyImmunology

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Q12780. Similarity between chlamydia and virus is

A.Filterable through filter

B.Ability to grow in cell free media

C.Contains both DNA and RNA

D.All of the above

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MicrobiologyImmunology

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Q12782. Which test cannot differentiate endemic and epidemic typhus

A.Weil-Felix reaction

B.Complement fixation test

C.Immunofluorescence

D.Radio precipitation

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MicrobiologyImmunology

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Q12793. Core antigen [HBO in HBV is encloded by which gene ?

A.S

B.C

C.P

D.X

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Q12802. Adherence of E. histolytica to colonic mucosa is mediated by ?

A.Fibronectin

B.Lectin

C.Collagen

D.Fucose

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MicrobiologyImmunology

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Q12825. Integration of viral genome into host cell chromosome can leads to -

A.Malignancy

B.Latency

C.Altered growth

D.All of the above

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in topic "Immunology"