Q. No. 21. Streptococcus, Enterococcus and Pneumococcus are
differentiated by :
Option A M protein
Option B C carbohydrate antigen
Option C Hemolysis on blood
agar
Option D Peptidoglycan
Correct Option C
Q. No. 22. Transport media used for gonococci is
Option A Stuart's medium
Option B Pike's medium
Option C VR medium
Option D Cary Blair medium
Correct Option A
Q. No. 23. Gram stain morphology of Bacillus anthracis is:
Option A Tennis racket
appearance
Option B Drum stick appearance
Option C Bamboo stick
appearance
Option D Spectacle glass
appearance
Correct Option C
Q. No. 24. The most effective way of preventing tetanus:
Option A Hyperbaric oxygen
Option B Antibiotics
Option C Tetanus toxoid
Option D Surgical debridement
and toilet
Correct Option C
Q. No. 25. Acid fastness of M.tuberculosis is due to :
Option A Peptidoglycan layer
Option B Arabinoglycan layer
Option C Mycolic acid layer
Option D Lipoarabinomannan
Correct Option C
Q. No. 26. The generation time of leprae bacilli is:
Option A 20 minutes
Option B 2 hours
Option C 20 hours
Option D 12-13 days
Correct Option D
Q. No. 27. Traveler's diarrhea is caused by :
Option A ETEC
Option B EIEC
Option C EAEC
Option D EHEC
Correct Option A
Q. No. 28. Bipolar staining is characteristic of :
Option A Yersinia pestis
Option B Shigella
Option C Klebsiella
Option D Proteus
Correct Option A
Q. No. 29. In a patient with typhoid, diagnosis within a week of
onset of fever is best done by:
Option A Blood culture
Option B Stool culture
Option C Widal test
Option D Urine culture
Correct Option A
Q. No. 30. Selective media for Vibrio cholerae :
Option A TCBS
Option B Mannitol salt agar
Option C Robertson cooked meat
broth
Option D Modified Thayer martin
medium
Correct Option A
