On a stained slide, clostridium tetani has the appearance of a__________________?
(A) Bunch of a
(B) Chain of beads
(C) Drum stick
(D) Safely pin
In initial stages of tyhoid, salmonella can be detected in________________?
(A) Feacus
(B) Urine
(C) Blood
(D) All of the above
Signs of tyhoid fever is/are_____________________?
(A) Haemorrhage
(B) perforation
(C) Osteomyelitis
(D) All of the above
The structure in involved in bacterial attachment to cell surface is_______________?
(A) Capsule
(B) Fimbria
(C) Flagella
(D) None of the above
Electron microscopic examination of the bacterial flora of necrotising ulcerative gingivitis indicates the presence of microorganisms within non-necrotic tissues in advance of other bacteria. The organisms involved are______________?
(A) Cocci
(B) Spirochetes
(C) Bacteriophages
(D) Filamentous rods
The following are applicable to bacterial genoms except________________?
(A) It is composed of DNA
(B) It doe not contain histones
(C) It is circular
(D) Its DNA has both introns and extrons
Each of the following can cause food poisoning except________________?
(A) Cl. difficile
(B) Staphylococcus
(C) Cl. welchii
(D) Cl. botulinum
The bacterial cell wall has all of the following properties except______________?
(A) It consists of a mixed polymer called peptidoglycon
(B) It is the structure principally responsible for the reaction of gram staining
(C) It is a unique flexible plastic structure
(D) It contains D-isomers of amino acids
Anaerobic bacteria grow_______________?
(A) in the presence of oxygen
(B) in the presence of nitrogen
(C) in the absence of oxygen
(D) differential media
Leptospirosis, all are true except______________?
(A) Faeces & urine of rodents is the cause
(B) Onset of IgM in 2 days
(C) Incubation period is 10 days
(D) It is sensitive to penicillin