1. Most antibodies are produced in the: Brain and the meninges Spleen and the Lymph nodes Heart and the liver Thymus and the appendix 2. One of the following is a zoonotic disease Typhoid Baccilary dysentery Anthrax Cholera 3. Positive Shick’s test indicates that person is Immune to diphtheria hypersensitive to diphtheria Susceptible to diphtheria Carrier of diptheria 4. The genetic ability of a bacterium to grow in the presence of several antibiotics is passed from one bacterium to other by Transduction Conjugation Rarefaction Transformation 5. Which stage of plasmodium vivax is infective for mosquito? Sporozoite Ookinete Trophozoite Gametocyte 6. Benzalkalonium chloride belongs to which category of disinfectants: Biguanides Phenolic compounds Essential oils Quaternary ammonium compounds 7. Anaphylaxis refers to the Severe reaction resulting from sensitivity to common allergens State of immunity developed by repeated injections of any foreign substance Severe reaction followings the injection of protein solutions in a sensitized individual Severe reaction following primary injection of protein solutions 8. Which of the following distinguishes viral infections from other microbial Toxin production Neutrophil production Production of interferon Lymphocyte production 9. Percentage of alcohol commonly used for optimum disinfection: 5-10% 60-80% 30-50% 10-20% 10. Which of the following organisms are arranged in cubical packets of eight cocci Staphylococcus Micrococcus Sarcina Aerococcus 11. In poorly controlled Type I diabetes, most common infection is: Rhinosporidiasis Mucormycosis Histoplasmosis Cryptococcus 12. Phase contrast microscopy is based on Light scatter Light attenuation Different reflective index Different refractive index B 13. The property of splitting sugars by bacteria is called: Toxogenic Saccharolytic Virulence Saprophytic 14. Immunoglobulin crossing placenta is IgD IgG IgA IgM 15. Fungus affecting reticular endothelial system Cryptococcus neoformans Histioplasma capsulatum Rhizopus Mucormycosis 16. Pathogenic treponemas can be maintained in: Chick embryos Tissue culture Rabbit testis only Artificial media 17. EB virus is associated with which carcinoma: Carcinoma of larynx Chronic lymphocytic leukemia Carcinoma of bladder Nasopharyngeal carcinoma 18. Australian antigen is associated with: Basal cell carcinoma AIDS Chronic leukemia Hepatitis B surface antigen in acute hepatitis 19. Soluble components of complement system account for about 5-7 mg/ml of total serum protein 1-2 mg/ml of total serum protein 3-4 mg/ml of total serum protein 7-8 mg/ml of total serum protein 20. Bacteria with potent exotoxin is Klebsiella Shigella lostridium tetani Pseudomonas Loading … Question 1 of 20
