1. First immunoglobulin increased during immunityIgMIgDIgAIgGQuestion 1 of 20 2. Vaccination is based on the principle of:Immunologic MemoryAgglutinationClonal detectionPhagocytosisQuestion 2 of 20 3. Synthesis of an immunoglobulin in membrane bound or secretory form is determined by:Allelic exclusionDifferential RNA processingClass switchingOne turn to two turn joining ruleQuestion 3 of 20 4. Which of the following is not a rapidly growing atypical mycobacteria causing lung infectionsM.kansasiiM. chelonaeM.abscessusM.fortuitumQuestion 4 of 20 5. 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 solubilityCAMP testCoagulase testBacitracin sensitivityQuestion 5 of 20 6. Epstein Barr virus causes autoimmunity by:Inappropriate Expression of MHC Class II MoleculesPolyclonal B cell ActivationRelease of Sequestrated AntigenMolecular MimicryQuestion 6 of 20 7. The process of inducing donor DNA in a bacteria by help of bacteriophageTransformationConjugationLysogenic conversationTransductionQuestion 7 of 20 8. Which of the following is true:Hanta virus pulmonary syndrome is caused by inhalation of rodent urine and facesLyssa virus is transmitted by ticksNoneKyanasur forest disease is caused by bite of / wild animalQuestion 8 of 20 9. Which of the following is CORRECT for obligate anaerobic microorgansims in the oral cavity?They are seldom isolated in the laboratory.They are normal flora and opportunistiThey do not exist in this area.Only gram-positive organisms are found.Question 9 of 20 10. Acellular pertusis vaccine contains -Pertactin, flagillary hemagglutinin, fimbriae, endotox inPertactin, flagillary hemagglutinin, cytotoxin, endotoxinFlagillary hemagglutinin, pertusis toxin, fimbriaePertactin, cytotoxin, fimbriae, pertactin,Question 10 of 20 11. The endotoxin pf the following gram negative bacteria doesn't play any part in the pathogenesis of the natural disease -E. coliKlebsiellaVibrio choleraPseudomonasQuestion 11 of 20 12. Endoscopes are sterilized by using:CidexGamma radiationAutoclavingBoilingQuestion 12 of 20 13. Anaphylotoxins:All of the aboveInduce smooth muscle contractionCause enhanced capillary permeabilityProduce inflammationQuestion 13 of 20 14. True about meningococci vaccine isVaccine with Polysaccharide B is immunogenicCapsule polysaccharide act as a virulent factor for the production of antibodyPolysaccharide vaccine should be given to children below 2 years of ageConjugate vaccine not given in outbreaksQuestion 14 of 20 15. The genetic ability of a bacterium to grow in the presence of several antibiotics is passed from one bacterium to other byTransductionRarefactionTransformationConjugationQuestion 15 of 20 16. Which of the following is not a feature of anaphylaxis?Passive transfer by serumDelayed reactionImmediate reactionNone of the aboveQuestion 16 of 20 17. Farmer presents with the features of high fever, painful inguinal lymphadenopathy, vomiting and diarrhoea and hypotension. Which stain will help in the diagnosisAlbert's stainWayson's stainNeisser stainMeFadyean's stainQuestion 17 of 20 18. Bacteria with potent exotoxin islostridium tetaniKlebsiellaPseudomonasShigellaQuestion 18 of 20 19. Actinomycetes isGram negative bacteriaFungusA yeast like formram positive bacteriaQuestion 19 of 20 20. Oxidase positive Gram-negative bacilli that do not show coloured colonies on Mac-Conkey MediaShigellaPseudomonasProteusSalmonellaQuestion 20 of 20 Loading...
