1. First organism to appear in oral cavity: Streptococcus sanguis Strept. Mutans Lactobacilli Strept. Salivarious 2. Candida albicans causes all of the following except Mycetoma Meningitis Endocarditis Oral thrush 3. All are true about viruses except: Are obligate intracellular parasites Do not show latency between inoculation and disease Enveloped virus are more susceptible to environmental conditions The nucleic acid is either RNA or DNA 4. Which of the following is not a role of immunoglobulin G (IgG): Neutralizes bacterial toxins Prominent in primary immune response Crosses placenta Helps in opsonisation 5. Polypeptide capsule is seen in Corynebacterium diphtheria Staphylococcus aureus Bacillus anthracis Clostridium welchii 6. Adenosine deaminase deficiency is seen in the following: Severe combined immuno deficiency syndrome Common variable immuno deficiency syndrome Nezelofs syndrome Chronic granulomatous disease 7. Which of the following is not a feature of anaphylaxis? Immediate reaction Passive transfer by serum Delayed reaction None of the above 8. H. pylori infection is seen in all except: Gastric lymphoma Fundal gastritis Gastric carcinoma Duodenal ulcer 9. Causative organism for gas gangrene Clostridium tetani Strep. Faecalis E. Coli Clostridium welchii 10. All of the following are potential pathogens of ororpharynx except: H. influenzae Streptococcus pneumonia N. Meningitides E.coli 11. The best way to sterilize an instrument soaked in AIDS virus is: Clean and autoclave with dry heat Moist autoclaving Dip the instrument in glutaraldehyde Boiling for 1 hour 12. All are true regarding Donavanosis except: Syphilis can occur concomitant with it The causative organism is Calymmatobacter granulomatis Endemic in tropical areas Causes painful ulcerative genital lesions 13. In the management of leprosy, Lepromin test is most useful for Prognosis Diagnosis Treatment Epidemiological investigations 14. Post streptococcal acute glomerulus nephritis is an example for Type III hypersensitivity Type IV hypersensitivity Type I hypersensitivity Type II hypersensitivity 15. Type I hypersensitivity is caused by: IgA IgD IgE IgG 16. Antibiotic sensitivity and resistance of microorganisms is determined by DNA probe ELISA Culture Direct microscopy 17. A veterinary doctor had pyrexia of unknown origin. His blood culture in special laboratory media was positive for gram-negative short bacilli which was oxidase positive. Which one of the following is the likely organism grown in culture? Pasteurella spp Brucella spp Bartonella spp Francisella spp 18. False about Staphylococcus lugdunensis Susceptible to antimicrobial Skin commensal Does not produce coagulase Causes infection of native valve 19. IL-1 and TNF – ? during Inflammation are secreted by Plasma cells Activated macrophages Lymphocytes Platelets 20. The medium of choice for growing most fungi is Thioglycollet medium Tissue culture Sabourauds agar Blood Agar Loading … Question 1 of 20