1. Mycotic abscesles are due to: Fungal infection. Mixed infection Bacterial Infection Viral infection. 2. Mycobacterium tuberculosis is differentiated from other atypical mycobacteria by Niacin test AFB staining None PAS staining 3. Hepatitis E virus causes which of the following: Acute liver failure Chronic renal failure Cirrhosis of liver Chronic liver disease 4. Bacteria acquire characteristics by all of the following except Incorporating part of host DNA Through conjugation Through bacteriophages Through plasmids 5. Nagglers reaction detects- Hyaluronidase None of the above Lecithinase Coagulase 6. Positive Shick’s test indicates that person is Carrier of diptheria Immune to diphtheria Susceptible to diphtheria hypersensitive to diphtheria 7. Serum sickness syndrome is an example of Cell mediated immunity Systemic arthus reaction Anaphylactic shock Angioneurotic edema 8. Blood spills in hospital are disinfected with Absolute alcohol Quarternary ammonium compounds Sodium hypochlorite Cetavlon 9. Which of the following distinguishes viral infections from other microbial Lymphocyte production Toxin production Neutrophil production Production of interferon 10. It is true regarding the normal microbial flora present on the skin and mucous membranes that It cannot be eradicated by antimicrobial agents. It is absent in the stomach due to the acidic pH. It establishes in the body only after the neonatal period. The flora in the small bronchi is similar to that of the trachea. 11. Regarding leptospirosis all are true except: Humans are accidental hosts of the disease Lice act as reservoirs of disease It is a zoonosis Humans are the end hosts 12. Antibody to HSV will begin to appear Only after one year Antibodies are present In recurrent and chronic apthous stomatitis No antibodies are present in primary HSV In a week and reach a peak in 3 weeks 13. Silver Impregnation method of staining is useful to demonstrate None of the above Bacterial flagella Spirochetes Both of the above 14. Neurotoxin of tetanus acts on Muscle Spinal Cord Brain Synapse 15. The serum concentration of which of the following human IgG subclass is maximum? IgG1 IgG4 IgG2 IgG3 16. All of the following infections may be transmitted by dental instruments except Hepatitis B Hepatitis E HIV Hepatitis C 17. Phagocytosis enhanced by coating the surface of antigen is called Chemotaxis Decoding Opsonisation CFT 18. Phase contrast microscopy is based on Light attenuation Light scatter Different reflective index Different refractive index B 19. Which one of the following statement is true regarding pathogenicity of Mycobacteria species? M. Marinum is responsible for tubercular lymphadenopathy M. Kansasii can cause a disease indistinguishable from tuberculosis M. tuberculosis is more pathogenic than M. bovis to t he humans M. Africanum infection is acquired from the environmental source 20. Which of the following is characteristic infection’ caused by Nocardia: Secondary dissemination to liver Brain abscess Colonic diverticulosis Diarrhea Loading … Question 1 of 20
