Category: Bacteriology

Which of the following enzyme is required to induce the formation of a plasma clot pathogenic staphylococci_____________?

Hamad Bacteriology 10/03/2021

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A. Lysozyme
B. Fibrinolysin
C. Coagulase
D. S protein

Test for differentiating virulent form non-virulent tubercular bacilli_____________?

Hamad Bacteriology 09/03/2021

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A. Aryl sulphatase test
B. Niacin test
C. Neutral red test
D. Catalase peroxidase test

Neurotoxin of tetanus acts on______________?

Hamad Bacteriology 08/03/2021

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A. Synapse
B. Muscle
C. Brain
D. Spinal card

A diabetic patient developed cellulitis due to staphylococcus aureus, which was found to be Methicillin resistant on the antibiotic sensitivity testing. All of the following antibiotics will be appropriate EXCEPT________________?

Hamad Bacteriology 02/03/2021

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A. Vancomycin
B. Imipenem
C. Teichoplanin
D. Linezolid

The most primitive mode of gene transfer occurs by____________?

Hamad Bacteriology 01/03/2021

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A. Transduction
B. Translation
C. Cell fusion
D. Conjugation

Vibrio cholera was discovered by_________________?

Hamad Bacteriology 21/02/2021

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A. Koch
B. Medintoff
C. John snow
D. Virchow

About Bacteroids True are all Except_______________?

Hamad Bacteriology 20/02/2021

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A. Susceptible to many antibiotics
B. Present mainly in mixed infections
C. Most common species is B fragilis
D. Bile resistant anerobes

Bacteria acquire characteristics by all of the following except___________________?

Hamad Bacteriology 17/02/2021

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A. Though plasmids
B. Incorporating part of host DNA
C. Through bacteriophages
D. through conjugation

Pathogenic treponemas can be maintained in________________?

Hamad Bacteriology 10/02/2021

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A. Tissue culture
B. Chick embryos
C. Artificial media
D. Rabbit testis only

Inactivated microorganisms are used in the manufacture of which of the following________________?

Hamad Bacteriology 01/02/2021

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A. Salk vaccine
B. Tetanus toxoid
C. Sabin’s oral vaccine
D. All of the above