Category: Microbiology

Which of the following would you consider to be general properties of viruses______________?

Hamad Virology 05/01/2022

A. New virus particle arises directly (by division) from preexisting viruses
B. Fall in to the general size range of 200-3000 angstrom unit
C. Contain equal proportions of protein, lipo polysaccharide and nucleic acids
D. Contain DNA but no RNA

The distinguishing characteristic of a positive delayed type hypersensitivity skin test is______________?

Hamad General Microbiology 04/01/2022

A. Erythema
B. Necrosis
C. Induration
D. Vasculitis

Immunoglobulin crossing placenta is_________________?

Hamad General Microbiology 03/01/2022

A. Ig M
B. Ig A
C. Ig G
D. Ig D

Plasmid__________________?

Hamad General Microbiology 02/01/2022

A. Involved in multidrug resistance transfer
B. Involved in conjugation
C. Imparts capsule formation
D. Imparts pili formation
E. Both A & B

Which of the following is true about tetanus acquired through traumatic wound ?

Hamad Bacteriology 01/01/2022

A. Clostridium tetani travels via the nerves to the anterior horn dells in spinal cord
B. The tetanospasmin component of the exotoxin act on the post-synaptic neurones and prevents impulse transmission
C. The patient should be given tetanus toxoid intravenously
D. Causes positive Nagler reaction