1. Staphylococci typically occurs in Pairs Irregular Clusters Chains Tetrads 2. The single most important laboratory test for determining the virulence of staphylococci is The catalase test Hemolysis of sheep erythrocytes Detection of coagulase Mannitol fermentation 3. The earliest identifiable cells of T-Cell Lineage during maturation are CD8+ Pro-T-Colls CD8+ Pre-T-Cells CD4+ Pre-T-Cells CD7 + Pro-T-Cells 4. J chain is seen in which immunoglobulin: IgE IgG and IgM IgM and IgA IgD 5. Bacteria with tuft of flagella at one end are called Peritrichate Lophotrichate Bipolar Monotrichate 6. With reference to Bacteroides fragilis the following statement are true except? B.Fragilis is the most frequent anaerobe isolated from clinical samples Shock and DIC are common in Bacteroides bacteremia B.Fragilis is not uniformly sensitive to metronidazole The lipo polysaccharide formed by B.Fragilis is structurally and functionally different from the conventional endotoxin 7. For uniform staining reaction, morphology & biochemical activity, it is advisable to study bacterial cultures during the Lag phase Logarithmic phase Stationary phase Death phase 8. Zero growth rate is observed during one of the phases of the bacterial growth curve: Exponential growth Lag Stationary phase Decline 9. All are true about viruses except: Do not show latency between inoculation and disease Enveloped virus are more susceptible to environmental conditions Are obligate intracellular parasites The nucleic acid is either RNA or DNA 10. Organism most resistant to sterilization: Spores Mycobacteria Prions Fungus 11. Adenosine deaminase deficiency is seen in the following: Severe combined immuno deficiency syndrome Chronic granulomatous disease Common variable immuno deficiency syndrome Nezelofs syndrome 12. The classic opportunistic infection in acquired immune deficiency syndrome is: Tuberculosis Herpetic gingivostomatitis Pneumocystis carinii pneumonia Apthous stomatitis 13. Pseudomonas, true is all except It can cause endogenous infection It is a strict aerobe Most common organism in burnt patient It grows in antiseptic solution 14. ELISA is: An enzymatic immune reaction A radiologic procedure A name of a scientist A pioneer in dentistry 15. Adjuvant given along with antigens are going to reduce the toxigenicity increase toxigenicity increase antigenicity reduce the antigenicity 16. Fungus affecting reticular endothelial system Cryptococcus neoformans Histioplasma capsulatum Rhizopus Mucormycosis 17. Phase contrast microscopy is based on Light attenuation Different reflective index Different refractive index B Light scatter 18. Stain used for histologic demonstration of candida hyphae Carbol fuschin PAS Acridine orange Hematoxylin & Eosin 19. Phagocytosis enhanced by coating the surface of antigen is called Chemotaxis Opsonisation CFT Decoding 20. Anaphylaxis refers to the State of immunity developed by repeated injections of any foreign substance Severe reaction following primary injection of protein solutions Severe reaction resulting from sensitivity to common allergens Severe reaction followings the injection of protein solutions in a sensitized individual Loading … Question 1 of 20
