cAMP reaction is shown by which streptococci?
A. Group D
B. Group C
C. Group B
D. Group A
MICRO BIOLOGY
Microbiology MCQs with answers for medical students. Micro biology MCQ questions with answers for online tests.
Mechanism of genetic transfer where a phage serves as a vehicle is ?
A. Translation
B. Conjugation
C. Transduction
D. Lysogeny
Fimbriae are demonstrated by ?
A. Gram stain
B. Biochemical reaction
C. Haemagglutination test
D. Culture
Staphylococcal food poisoning includes the following features ?
A. Requires immediate antibiotics
B. Heat labile enterotoxin
C. Incubation period of 24 hours
D. Common with dairy products
Phospholipid used to investigate syphilis by the reagin test is ?
A. Palmityl lecithin
B. Serine
C. Plasminogen
D. Cardiolipin
In small intestine, cholera toxin acts by ?
A. Activation of GTPase
B. Active absorption of NaCI
C. ADP – ribosylation of the G regulatory protein
D. Inhibition of adenyl cyclase
Drumstick appearance is seen in ?
A. Cl. sphenoids
B. Cl. tetani
C. Cl. tetanomorphum
D. All of them
Nagglers reaction detects ?
A. Lecithinase
B. Coagulase
C. Hyaluronidase
D. None of them
In T.B cell mediated immunity is by ?
A. CD 8*
B. B – lymphocytes
C. CD 4*
D. None of them
Mycobacterium tuberculosis is differentiated from other atypical mycobacteria by ?
A. Pas staining
B. Niacin test
C. AFB staining
D. None of them