1. Virulence in gram negative bacteria is due toPeptidoglycanPiliTeichoic acidLipid AQuestion 1 of 20 2. Which of the following commonly produces a positive heterophile antibody test?Parainhluenza virusEpstein-Barr virusAdenovirusCytomegalovirusQuestion 2 of 20 3. Certain enzymes are responsible for suppuration, These enzymes derive chiefly fromTissue.Serumlymphocytes.Neutrophils.Question 3 of 20 4. In poorly controlled Type I diabetes, most common infection is:CryptococcusMucormycosisRhinosporidiasisHistoplasmosisQuestion 4 of 20 5. Kolmer test is a screening test done forLymphomaTuberculosisGonorrheaSyphilisQuestion 5 of 20 6. All are true about Leptospirosis except:Latent period is 10 daysUrine and faeces are main mode of transmissionIgM is formed in 5 daysPenicillin G is drug of choiceQuestion 6 of 20 7. Reassortment is seen in -HepadnavirusHerpesvirusRotavirusAstronovirusQuestion 7 of 20 8. Streptococcus mutans can be distinguished from other streptococci byProduction of extracellular polysaccharidesFermentation of mannitol and sorbitolHemolysis on blood agarOptochin sensitivityQuestion 8 of 20 9. The antigen-binding site of antibody molecules is localized in theFc receptorconstant regionFab fragmentJ- chain.Question 9 of 20 10. Which of the following viral diseases has the LONGEST incubation period?Common coldRabiesInfluenzaHerpetic gingivostomatitisQuestion 10 of 20 11. What will happen if a bacteria acquires genes coding for restriction endonuclease -Bacteria will die as lacks methylaseEnhances proof reading activity of that bacteriaIt will have capacity to divide & multiple many timesIt will damage the host cellQuestion 11 of 20 12. Thumb print appearance in culture film smear is seenBrucella speciesCtostridiurn welchiiBacillus anthracisBordetella pertussisQuestion 12 of 20 13. A patient presents with signs of pneumonia. The bacterium obtained from sputum was a gram positive cocii which showed alpha hemolysis on sheep agar. Which of the following test will help to confirm the diagnosis?Bile solubilityBacitracin sensitivityCoagulase testCAMP testQuestion 13 of 20 14. Process of tissue culture is known as?Macro propagationChemical propagationMicro propagationVegetative propagationQuestion 14 of 20 15. Non supparative lesion caused by group-A StreptococciImpetigoCellulitisNecrotizing fasciitisPoststreptococcaL GlomerulonephritisQuestion 15 of 20 16. Infectious form of Entamoeba histolytica isEggTrophozoiteBinucleated cystQuadrinucleated cystQuestion 16 of 20 17. Which of the following structures, found external to the bacterial cell wall, are involved in bacterial attachment to cell surfaces?MesosomesPiliFlagellaCapsuleQuestion 17 of 20 18. The endotoxin pf the following gram negative bacteria doesn't play any part in the pathogenesis of the natural disease -Vibrio choleraPseudomonasKlebsiellaE. coliQuestion 18 of 20 19. Endotoxin of which gram negative bacteria have no part in pathogenesis of disease:Pseudomonas AerogenosaVibrio choleraE.coliKlebsiellaQuestion 19 of 20 20. Toxoids arenon-antigenic and toxicantigenic and toxicantigenic and non-toxicnon-antigenic and non-toxicQuestion 20 of 20 Loading...