1. Type I hypersensitivity is mediated by which of the following immunoglobulins IgA. IgM. IgE. IgG. 2. Actinomycosis is caused by: Retrovirus cid fast. Non-motile bacillus Anaerobic, gram positive, non-acid fast bacteria. Fungus 3. Immunoglobulin crossing placenta is IgM IgG IgD IgA 4. True about Toxaplasma gondi is, it is carried by – Dogs Cow Cats Rats 5. Pseudomonas, true is all except Most common organism in burnt patient It can cause endogenous infection It is a strict aerobe It grows in antiseptic solution 6. NK CELL acts on viruses because Non Expression of MHC I on cell surface receptor Expression of MHC I on cell surface receptor Expression of MHC II on cell surface receptor NON Expression of MHC II on cell surface receptor 7. All of the following infections may be transmitted by dental instruments except Hepatitis E Hepatitis B Hepatitis C HIV 8. Serum sickness syndrome is an example of Anaphylactic shock Cell mediated immunity Systemic arthus reaction Angioneurotic edema 9. All of the following organisms are known to survive intracellularly except: Legionella pneumophila. Neisseria meningitides. Salmonella typhi. Streptococcus pyogenes. 10. The single most important laboratory test for determining the virulence of staphylococci is Hemolysis of sheep erythrocytes Mannitol fermentation Detection of coagulase The catalase test 11. Graft versus host reaction is caused by Monocytes B-lymphocytes T-lymphocytes Leukocytes 12. Ig predominant in saliva is: IgA IgM IgE IgD 13. Which of the following is true: Lyssa virus is transmitted by ticks Kyanasur forest disease is caused by bite of / wild animal None Hanta virus pulmonary syndrome is caused by inhalation of rodent urine and faces 14. Synthesis of antibodies in plasma cells occurs In: Mitochondria Nucleus Golgi body Endoplasmic reticulum 15. With reference to Bacteroides fragilis the following statement are true except? B.Fragilis is not uniformly sensitive to metronidazole The lipo polysaccharide formed by B.Fragilis is structurally and functionally different from the conventional endotoxin B.Fragilis is the most frequent anaerobe isolated from clinical samples Shock and DIC are common in Bacteroides bacteremia 16. In penicillin allergy, penicillin acts as a: Toxin Carrier Hapten Super antigen 17. The classic opportunistic infection in acquired immune deficiency syndrome is: Pneumocystis carinii pneumonia Apthous stomatitis Herpetic gingivostomatitis Tuberculosis 18. Commonest site of extra intestinal amoebiasis is: Brain Liver Lungs Spleen 19. Bacteria acquire characteristics by all of the following except Through bacteriophages Incorporating part of host DNA Through plasmids Through conjugation 20. Immunoglobin, which is produced first by the fetus in response to Infection IgM IgD IgA IgG Loading … Question 1 of 20
