(A) Bacillus anthracis
(B) Pasteurella multocida
(C) Brucella abortus
(D) Mycobacterium bovis
Tag: General Microbiology Mcqs
__ is capsulated and shows positive Negler’s reaction due to presence of α-toxin.
(A) Clostridium tetani
(B) Clostridium botulinum
(C) Clostridium perfringens
(D) Clostridium difficile
Ahmad comes from dinner, he complained about diarrhea, vomiting after 4 hours of meal. Most likely causative agent:
(A) Salmonella typhi
(B) Vibrio cholerae
(C) E. coli
(D) Staphylococcus aureus
A cook prepares snacks from 10 people going for a picnic. 08 out of them develop severe gastroenteritis within 4-6 hours of consumption of snacks. It is likely that on investigations cook is found to be carrier of:
(A) Salmonella typhi
(B) Vibrio cholerae
(C) E. coli
(D) Staphylococcus aureus
Staph. aureus differs from S. epidermidis by:
(A) Is coagulase positive
(B) Forms white colonies
(C) A common cause of UTI
(D) Causes endocarditis of prosthetic valve
Genetic and biochemical similarities between contemporary cyanobacteria and eukaryotic chloroplasts are accepted to mean that:
(A) Eukaryotes evolved from bacteria
(B) Eukaryotes evolved from archaea
(C) Oxygenic photosynthesis first evolved in eukaryotes
(D) Cyanobacteria arose from chloroplasts which escaped from plant cells
E. coli O157:H7 is an example of:
(A) Enterotoxigenic E. coli (ETEC)
(B) Enterohemorrhagic E. coli (EHEC)
(C) Enteropathogenic E. coli (EPEC)
(D) Enteroinvasive E. coli (EIEC)
The virulence of __ is linked to its cell wall, an exotoxin (PLD) and a protective antigen (CP40).
(A) Mycobacterium
(B) Campylobacter
(C) Brucella
(D) Corynebacterium