972. Which of the following characteristics of bacteria is not true? September 27, 2025 by Admin A. Unicellular B. Free living C. Having either DNA or RNA D. Cell wall containing muramic acid ✅ The correct answer is option Having either DNA or RNA.
968. The optimal time and temperature required for sterilization in an autoclave is___________________? September 27, 2025 by Admin A. 140°C x 2 hrs. x 10 lbs pr. B. 121°F x 15 mts. x 15 lbs pr. C. 121°F x 15 se x 15 lbs pr. D. 121°C 15 mts. x 15 lbs pr. ✅ The correct answer is option 121°C 15 mts. x 15 lbs pr..
963. Sclerotic bodies measuring 3-5m in size, multi-septate, chestnut, brown color is characteristic of________________? September 27, 2025 by Admin A. Histoplasmosis B. Rhinosporodiosis C. Phaeohypomycosis D. Chromoblastomycosis ✅ The correct answer is option Chromoblastomycosis.
959. Secretory piece of IgA is synthesized in______________? September 27, 2025 by Admin A. T-cells B. B-cells C. Lymph nodes D. Mucosal epithelium ✅ The correct answer is option Mucosal epithelium.
986. The virus which causes Aplastic anemia in chronic hemolytic disease is_______________? September 27, 2025 by Admin A. Adeno B. Hepatitis C. EB virus D. Parvo virus ✅ The correct answer is option Parvo virus.
982. Sterilisation control for moist heat is “or” The efficacy of the moist heat sterilization technique commonly used to sterlilize laboratory ware and culture media is tested by using_______________? September 27, 2025 by Admin A. using Bacillus stearo thermo philus B. Using non-pathogenic strain of clostridium tetani C. Using chemical indicator D. Using methylene blue ✅ The correct answer is option using Bacillus stearo thermo philus.
979. cAMP reaction is shown by which streptococci ? September 27, 2025 by Admin A. Group A B. Group B C. Group C D. Group D ✅ The correct answer is option Group B.
974. Function of Ig A is________________? September 27, 2025 by Admin A. Acts as a mucosal barrier for infection B. Circulating antibody C. Kills virus infected cells D. Activates macrophages ✅ The correct answer is option Acts as a mucosal barrier for infection.
971. Seroconversion in HIV infection takes place in______________? September 27, 2025 by Admin A. 2 weeks B. 4 weeks C. 9 weeks D. 12 weeks ✅ The correct answer is option 4 weeks.
970. The term epitope refers to________________? September 27, 2025 by Admin A. complete antigen molecule B. Hapten C. Immunogen D. Smallest antigenic determinant ✅ The correct answer is option Smallest antigenic determinant.