1. Bacteria acquire characteristics by all of the following exceptThrough plasmidsThrough conjugationIncorporating part of host DNAThrough bacteriophagesQuestion 1 of 20 2. All of the following statements about staphylococcus aureus are true exceptMost common source of infection is cross infection from infected peopleEpidermolysin and TSS toxin are superantigenMethicillin resistance is chromosomally mediatedbout 30% of general population is healthy nasal carriersQuestion 2 of 20 3. With reference to Bacteroides fragilis, all of the following statements are true exceptB. fragiIis is-the most frequent anaerobe isolated from clinical samplesB fragilis is not uniformly sensitive to MebronidazoleShock and DIC are common in Bacteriodes bacteremiaLipopolysaccharide formed by B. fragilis is structurally and functionally different from the conventional endotoxinQuestion 3 of 20 4. True about Toxaplasma gondi is, it is carried by -CowCatsRatsDogsQuestion 4 of 20 5. A former from the sub-Himalayan region presents with multiple leg ulcers. The most likely causative agent is:C]adosporium speciesTrichophyton RubrumSporothrix SchenkiiAspergillusQuestion 5 of 20 6. In either an allergic reaction or a parasitic Infection, which of the following cells increase in number in the bloodstream?Atypical lymphocytesPlasma cellsEosinophilsBasophilsQuestion 6 of 20 7. The most sensitive and rapid test for diagnosis of CMV retinitis isViral antibody detection in the blood by ELISAViral isolation from the intraocular fluidViral antigen detection in vitreousNucleic acid detection from the intraocular fluidQuestion 7 of 20 8. Dimorphism in microorganisms is characterized by the capability to produceboth by budding and by production of spores.both a yeast phase and a mycelial phase.two distinct types of clinical infections.Both sexual and asexual spores.Question 8 of 20 9. The biologic consequences of complement activation include:All of the aboveImmune adherence and opsonisationAnaphylatoxin activityChemotaxis of phagocytesQuestion 9 of 20 10. Most antibodies are produced in the:Heart and the liverSpleen and the Lymph nodesThymus and the appendixBrain and the meningesQuestion 10 of 20 11. All of the following are true about acute infection except:Immunofluorescence is useful in detecting influenza infectionSpecific IgM antibody occurs in acute infectionSpecific IgM indicates rubella immune statusELISA is useful in Hepatitis B infectionQuestion 11 of 20 12. In a 5 year old boy who has history of pyogenic infections by bacteria with polysaccharide-rich capsules, which of the following investigations should be done?IgG1 deficiencyIgA and IgG2 deficiencyIgG2 deficiencyIgA deficiencyQuestion 12 of 20 13. NK CELL acts on viruses becauseNon Expression of MHC I on cell surface receptorNON Expression of MHC II on cell surface receptorExpression of MHC I on cell surface receptorExpression of MHC II on cell surface receptorQuestion 13 of 20 14. Lymes disease all are true except -Infection progresses inspite of good humoral jmmunityPolymorphonuclear lymphocytosis in CSF suggest meningeal involvementIgA intrathecally confirms meningitisBorellia bourgdroferi replicates locally and invades locallyQuestion 14 of 20 15. The anaphylaxis should be treated first withAntibioticsAnti histaminesEpinephrineSteroidsQuestion 15 of 20 16. The first virological marker following acute hepatitis B infection isIgM Anti Hbc AgAnti Hbe AgHbsAgAnti Hbs AgQuestion 16 of 20 17. Neonatal sepsis is not caused by -Staphylococus aureusE.coliGroup B streptococciAcintobacterQuestion 17 of 20 18. Which of the following features is not shared between 'T cells' and 'B cells'All of the aboveClass I MHC expressionAntigen specific receptorsPositive selection during developmentQuestion 18 of 20 19. Synthesis of an immunoglobulin in membrane bound or secretory form is determined by:Class switchingOne turn to two turn joining ruleDifferential RNA processingAllelic exclusionQuestion 19 of 20 20. Dark ground microscopy is useful to identify:MycoplasmaChlamydiaeSpirochaetesRickettsiaeQuestion 20 of 20 Loading...
