1. EB virus is associated with which carcinoma: Carcinoma of bladder Carcinoma of larynx Chronic lymphocytic leukemia Nasopharyngeal carcinoma 2. Which of the following is true about streptococcus pneumoniae: Gram +ve coccobacilli Gram +ve Lanceolate diplococci Gram -ve diplococcic Extracellular grain -ve diplococcic 3. Which of the following structures, found external to the bacterial cell wall, are involved in bacterial attachment to cell surfaces? Capsule Mesosomes Flagella Pili 4. Soluble components of complement system account for about 7-8 mg/ml of total serum protein 5-7 mg/ml of total serum protein 3-4 mg/ml of total serum protein 1-2 mg/ml of total serum protein 5. Dark ground microscopy is useful to identify: Rickettsiae Spirochaetes Chlamydiae Mycoplasma 6. Loss of capsule in bacteria is generally associated with Decrease in virulence Inability to spread through tissue Loss of Infectivity Increase in invasiveness 7. Toxoids are antigenic and non-toxic antigenic and toxic non-antigenic and non-toxic non-antigenic and toxic 8. Characteristic feature of retiovirus is: Reverse transcriptase DNA polymerase Restriction endonuclease Ribonuclease 9. Organism most resistant to sterilization: Fungus Mycobacteria Spores Prions 10. Gram positive cocci which produce greenish colonies when cultured on blood agar, is bile insoluble and does not produce lesions when inoculated intra peritonially in mice, is: Streptococcus mitis Streptococcus pyogenes Staphylococci aureus Pneumococci 11. Culture medium for Corynebacterium diphtheria Lowenstein Jensen Medium Saborauds agar Mcconkey Loefflers serum slope 12. True regarding Malaria: Schizont are infective to mosquitoes Trophozoites are infective to mosquitoes Tissue phase is seen in P. Falciparum Tissue phase is seen in P. vivax 13. Sunlight has sterilizing effect because: Heat is present It has short wavelength It has long wavelength Ozone is present in the environment 14. Post streptococcal acute glomerulus nephritis is an example for Type II hypersensitivity Type I hypersensitivity Type IV hypersensitivity Type III hypersensitivity 15. Which of the following is an enrichment medium? Selenite F Broth Blood agar Nutrient Broth Mac Conkey agar 16. Causative organism for gas gangrene E. Coli Clostridium tetani Strep. Faecalis Clostridium welchii 17. Adenosine deaminase deficiency is seen in the following: Severe combined immuno deficiency syndrome Common variable immuno deficiency syndrome Chronic granulomatous disease Nezelofs syndrome 18. Techoic acid is present in Cell wall of Gram negative organisms Cytoplasm of Gram positive organisms Cytoplasm of Gram negative organisms Cell wall of Gram positive organisms 19. The type of immunoglobulin most commonly increased in multiple myeloma is IgM IgA IgD IgG 20. Killer and Helper cells are part of: T cells Monocytes B cells Macrophage Loading … Question 1 of 20
