Resistance of Staphylococcus aureus is due to ________________________?
(A) Pleomorphism
(B) Elaboration of an enzyme that destroy penicillin
(C) Penicillin analogue production
(D) Lack of nucleic acid in the cell wall
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
The commonly used fluorescent dye in the detection of tubercie bacilli________________?
(A) Acridine orange
(B) Thioglavin
(C) Congo red
(D) Auramine and Rhodamine
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
Which of the following structures, found external to the bacterial cell wall, are involved in bacterial attachment to cell surfaces?
(A) Capsule
(B) Flagella
(C) Pili
(D) Mesosomes
Encapsulation in bacteria helps in__________________?
(A) Spore formation
(B) Decreased virulence
(C) Prevent their phagocytosis
(D) Oxygen effect
Phage conversion is required for________________?
(A) Tularemia
(B) Diptheria
(C) Gonorrhoea
(D) All o f the above