1. Weil's disease is caused byBorrelia BurgdorfenBorrelia RecurrentisLeptospira InterrogansTreponema EndemicumQuestion 1 of 20 2. Farmer presents with the features of high fever, painful inguinal lymphadenopathy, vomiting and diarrhoea and hypotension. Which stain will help in the diagnosisAlbert's stainMeFadyean's stainWayson's stainNeisser stainQuestion 2 of 20 3. In penicillin allergy, penicillin acts as a:Super antigenHaptenCarrierToxinQuestion 3 of 20 4. All of the following statements concerning immunity are true, except:The main function of the immune system is to prevent or limit infections by microorganisms such as bacteria, viruses, fungi, and parasitesTwo other major components of the immune system are complement and phagocytesThe cell-mediated arm consists primarily of B lymphocytes whereas the antibody-mediated arm consists of T lymphocytesProtection is provided primarily by the cell-mediated and antibody-mediated (humoral) arms of the immune systemQuestion 4 of 20 5. The process of inducing donor DNA in a bacteria by help of bacteriophageLysogenic conversationConjugationTransformationTransductionQuestion 5 of 20 6. Moist heat kills all of the following EXCEPT:MycobacteriumCoxiella burnettiSalmonellaBrucellaQuestion 6 of 20 7. All of the following clinical features are associated with enteroviruses HerpanginaHemorrhagic feverPleurodyniaMyocarditisQuestion 7 of 20 8. Adjuvant given along with antigens are going toreduce the toxigenicityreduce the antigenicityincrease toxigenicityincrease antigenicityQuestion 8 of 20 9. Pseudohyphae is characteristic ofAtternariaYeastCandida albicansAspergillusQuestion 9 of 20 10. Best method of sterilizing disposable syringes:UV raysHot air ovenBoilingGamma raysQuestion 10 of 20 11. Not used in leptospirosis -Weil felix reactionDark field illuminationMacroscopic agglutination testMicroscopic agglutination testQuestion 11 of 20 12. With reference to antibiotic resistance all of following statements are true except -Complete elimination of target is the mechanism by which enterococci develop resistance to vancomycinThe most common mechanism is production of neutralizing enzymes by bacteriaPlasmid mediated resistance is exclusively transferred verticallyAlteration of target lesions leads to development of resistance to antibiotics in Streptococcus pneumoniaQuestion 12 of 20 13. Which of the following investigations should be done immediately to best confirm a non matched blood transfusion reactionAntibody in patient's serumDirect Coomb's testAntibody in donor serumIndirect Coomb's testQuestion 13 of 20 14. Rabies is identified byCowdry B bodiesGuarneri bodiesNegri bodiesCowdry A bodiesQuestion 14 of 20 15. Opsonization is done by:PlateletsLTB4C3bInterferonQuestion 15 of 20 16. An advanced diagnostic technique which has been suggested as an alternative to culture methods is:Phase contrast microscopy.Latex agglutination.Indirect immunofluorscent microscope assays.Direct immunoflurescence.Question 16 of 20 17. Group A streptococci is best diagnosed by -Catalase negativeOptochin sensitivityBacitracin sensitivityBile solubilityQuestion 17 of 20 18. According to Koch's postulates, a causative agent must satisfy all of the following criteria exceptBacteria should be able to grow in pure culture from the lesionsBacteria may or may not cause disease in experimental animalsBacteria should be able to be isolated from diseased tissue in experimental animalsBacteria should be able to be isolate s from diseased tissueQuestion 18 of 20 19. Commonest mycobacterial infection in tropical countriesM. LepraeM. Avium intracellulareKansasiM. TuberculosisQuestion 19 of 20 20. Effector region of immunoglobulin isVariable region of light and heavy chainVariable region of heavy chainConstant region of light and heavy chainConstant region of heavy chainQuestion 20 of 20 Loading...
