(A) Working with Brucella on an open bench
(B) Direct contact with abraded skin
(C) Ingestion
(D) All of these
Tag: Basic Microbiology Mcqs Questions
Agarose gel electrophoresis is a widely used method that separates molecules based on:
(A) Electrical charge
(B) Size
(C) Shape
(D) All of these
TE buffer functions as:
(A) Maintain pH
(B) Block endonucleases
(C) Both “A” and “B”
(D) Denature proteins
An enrichment medium for Salmonella is __.
(A) Alkaline peptone water
(B) MacConkey broth
(C) Nutrient broth
(D) Selenite F broth
Which of the following is primarily human pathogenic bacteria?
(A) S. typhi
(B) E. coli
(C) S. aureus
(D) Mycobacterium
Internalization of the pathogen via endocytosis encase the pathogen in a membrane vacuole known as a?
(A) Lipid bilayer
(B) Lysosome
(C) Phagosome
(D) Phagolysosome
An enzyme found in our tears, saliva, serum, and mucus that degrades the peptidoglycan of the cell wall of Gram-positive bacteria is called?
(A) Amylase
(B) Lysozyme
(C) Keratinase
(D) Peptidase
Place following events of phagocytosis in the order. 1.Chemotaxis 2.Ingestion 3.Digestion 4.Attachment:
(A) 1,2,4,3.
(B) 4,1,2,3.
(C) 1,4,2,3.
(D) 4,2,3,1.