Microbiology Questions and Answers Pdf - 1

Question: 1

Elek's gel diffusion test is used for the detection of

(A) Diophtheria toxin

(B) Cholera toxin

(C) Tetani toxin

(D) Toxoid

Question: 2

The condition required for autoclave

(A) 120°C temp.and 20 lbs. pressure for 30 min.

(B) 121°C temp.and 15 lbs. pressure for 20 min.

(C) 130°C temp for 2 hr.

(D) 150°C temp.for 1 hr.

Question: 3

Tyndallisation was proposed by

(A) Jenner

(B) Koch

(C) Pasteur

(D) Tyndall

Question: 4

Separation of a single colony is

(A) Pure-culturing

(B) Isolation

(C) Both a and b

(D) Separation

Question: 5

Aldehydes, which are most powerful disinfectants

(A) Formaldehyde

(B) Acetaldehyde

(C) Glutamal aldehyde

(D) Both a and c