Lancefields classification of B hemolytic streptococcus is based on______________?
(A) M Protein
(B) Polysaccharide C antigen
(C) Type of lipid in cell membrane
(D) Physiological properties
Chlamydia causes all of the following except________________?
(A) Trachoma
(B) Non-gonococcal urethritis
(C) Pneumonia
(D) Parotitis
All of the following organisms are known to survive intracellularly except_____________?
(A) Neisseria meningitides
(B) Salmonella typhi
(C) Streptococcus pyogenes
(D) Legionella pneumophila
Bacteria acquire characteristics by all the following except_______________?
(A) Through plasmids
(B) Incorporating part of host DNA
(C) Through bacteriophages
(D) Through conjugation
Borrelia vincenti is always associated with______________?
(A) Spirochaetes
(B) Fusiform bacilli
(C) Treponema vincenti
(D) None of the above
Negative staining is used to demonstrate________________?
(A) Bacterial spore
(B) Bacterial Flagella
(C) Bacterial capsule
(D) Bacterial fimbriae
The most common pathogens responsible for nosocomial pneumonias in the ICU are______________?
(A) Gram positive organisms
(B) Gram negative organisms
(C) Mycoplasma
(D) Virus infections
Test for differentiating virulent form non-virulent tubercular bacilli_____________?
(A) Aryl sulphatase test
(B) Niacin test
(C) Neutral red test
(D) Catalase peroxidase test
Cough plate method is used to identify________________?
(A) Y. pestis
(B) Pertussis
(C) Mycoplasma
(D) M-Tuberculosis