Medical MCQs

5099 MCQs  (Page 202 of 510)

Common inhabitant of throat and tonsils is______________?
A. Alpha hymolytic streptococci (s. viridans)
B. Staphylococci
C. Beta hemolytic streptococci
D. Pneumococci
One of the following is a zoonotic disease_____________?
A. Anthrax
B. Typhoid
C. Bacillary dysentery
D. Cholera
The facultative anaerobic bacteria are those who are_______________?
A. Unable to grow in the presence of oxygen
B. Unable to grow in the absence of oxygen
C. Able to grow in the presence of carbon dioxide
D. Able to grow in the presence of absence of oxygen
Actinomycosis is caused by______________?
A. Fungus
B. Acid fast, non-motile bacillus
C. Anaerobic, gram positive, non-acid fast bacteria.
D. Retrovirus
Nagglers reaction is used in the diagnosis of______________?
A. Malaria
B. Whooping cough
C. Gas gangrene
D. Wool sorters disease
Loss of capsule in bacteria is generally associated with______________?
A. Decease in virulence
B. Loss of infectivity
C. Inability to spread through tissue
D. Increase in invasiveness
Bacteria acquire characteristics by all of the following except___________________?
A. Though plasmids
B. Incorporating part of host dna
C. Through bacteriophages
D. Through conjugation