51. Who first introduced solid media_______________?
A. Louis pasteur
B. Robert koch
C. Hensen
D. Ogston
✅ The correct answer is option Robert koch.
Microbiology MCQs
52. IgG antibodies have a half-life of approximately_______________?
A. 1 hour
B. 1 day
C. 1 week
D. 1 Month
✅ The correct answer is option 1 Month.
53. Type I hypersensitivity is mediated by which of the following immunoglobulins ?
A. IgA
B. IgG
C. IgM
D. IgE
✅ The correct answer is option IgE.
54. Which does not have a viral etiology______________?
A. Carcinoma Cervix
B. Hepatoma
C. Nasopharyngeal carcinoma
D. Lymphoma
✅ The correct answer is option Hepatoma.
55. Which of the following microbial cell is most resistant to antiseptics & disinfectants ?
A. Mycobacteria
B. Spore
C. Prions
D. Coccidia
✅ The correct answer is option Prions.
56. Test for differentiating virulent form non-virulent tubercular bacilli_____________?
A. Aryl sulphatase test
B. Niacin test
C. Neutral red test
D. Catalase peroxidase test
✅ The correct answer is option Neutral red test.
57. Cytopathic effect is shown by_____________?
A. Virus
B. Bacteria
C. Spirochete
D. Anaerobe
✅ The correct answer is option Virus.
58. Hospital dressing is best disposed by_____________?
A. Incineration
B. Dumping
C. Autoclaving
D. Burying
✅ The correct answer is option Incineration.
59. The Dane particle is the______________?
A. HBV
B. IgG anti HAV
C. Delta Virus
D. HBC Ag
✅ The correct answer is option HBV.
60. Hepatitis A virus is best diagnosed by______________?
A. IgM antibodies in serum
B. Isolation form stool
C. Culture from blood
D. Isolation from bile
✅ The correct answer is option IgM antibodies in serum.