A. Neisseria meningitides
B. Salmonella typhi
C. Streptococcus pyogenes
D. Legionella pneumophila
✅ The correct answer is option Streptococcus pyogenes.
Microbiology MCQs
102. Virus infected cell is killed by________________?
A. Interferons
B. Macrophages
C. Neutrophils
D. Autolysis
✅ The correct answer is option Interferons.
103. Which of the following are non-spore forming anaerobic bacteria that asume major significance in disease processes________________?
A. Bacteroides fragilis
B. Fusobacterium nucleatum
C. Peptostreptococcus anaerobius
D. Actinomyces Israeli
✅ The correct answer is option E. All of the above.
104. Anaerobic bacteria grow_______________?
A. in the presence of oxygen
B. in the presence of nitrogen
C. in the absence of oxygen
D. differential media
✅ The correct answer is option in the absence of oxygen.
105. Function of T-lymphocyte is/are________________?
A. Production of interferon
B. Lymphokine production
C. Rosette formation
D. All of the above
✅ The correct answer is option All of the above.
106. Sporulation occurs in__________________?
A. Lag phase
B. Log phase
C. Stationary phase
D. Decline phase
✅ The correct answer is option Stationary phase.
107. The following immunoglobulin is not known to fix complement_________________?
A. IgE
B. IgM
C. IgA
D. IgG
✅ The correct answer is option IgE.
108. The binding site for complement on the IgG molecule is in the________________?
A. VL domian
B. CL domian
C. CH1 domian
D. CH2 domian
✅ The correct answer is option CH2 domian.
109. Sterilization of liquid paraffin is done by______________?
A. Autoclaving
B. Hot air oven
C. UV-Radiation
D. Inspissation
✅ The correct answer is option Hot air oven.
110. Salivary protein, which prevents transmission of human immunodeficiency virus via saliva, is____________?
A. Sialoperoxidase
B. Secretory IgA
C. Salivary leukocyte proteinase inhibitor
D. Histidine rich proteins
✅ The correct answer is option Salivary leukocyte proteinase inhibitor.