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.Management Sciences
Category: Bacteriology
The genetic ability of a bacterium to grow in the presence of several antibiotics is passed in vivo from one bacterium to another by_____________?
A. Conjugation
B. Rarefaction
C. Transduction
D. Transformation
A veterinary doctor had pyrexia of unknown origin His blood culture in special laboratory media was positive for gram negative short bacilli which was oxidase positive. Which one of the following is the likely organism grown in culture ?
A. Pasturella spp
B. Francisella spp
C. Bartonella spp
D. Brucella spp
The commonly used fluorescent dye in the detection of tubercie bacilli________________?
A. Acridine orange
B. Thioglavin
C. Congo red
D. Auramine and Rhodamine
Staphylococcus does not causes_______________?
A. Osteomyelitis
B. Abscess
C. Scarlet fever
D. Pneumonia
Nagglers reaction is used in the diagnosis of______________?
A. Malaria
B. Whooping cough
C. Gas gangrene
D. Wool sorters disease
Bacteria reproduce mainly by______________?
A. Budding
B. Binary fission
C. Sporing
D. Bacterial components produced by host cells
Phospholipid used to investigate syphilis by the reagin test is________________?
A. Cardiolipin
B. Plasminogen
C. Palmityl lecithin
D. Serine
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
Signs of tyhoid fever is/are_____________________?
A. Haemorrhage
B. perforation
C. Osteomyelitis
D. All of the above
All are true about widel test except________________________?
A. Base lines differ depending on the endemicity of the disease
B. O antibodiest last longer and hence is not indicative of recent infection
C. H antigen cannot differentiate between subtypes
D. High titre value in a single widal test is not confirmative
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