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Microbiology

Microbiology
Bacteria are

saprophytic
symbiotic
all of these
hyper parasitic

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Microbiology
Xylose lysine deoxycholate (XLD) agar is better selective medium than the deoxycholate citrate agar (DCA) because

it imparts better growth
it is selective
it is less inhibitory to S. Dysentriae and S. flexneri
it contains high salt concentration

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Microbiology
Gram-negative bacteria, responsible for food poisoning, is/are

None of these
Clostridia
Salmonella
Pseudomonas

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Microbiology
Which of the following is/are not a gram-positive bacteria?

Streptococci
Pseudomonas
Mycobacteria
None of these

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Microbiology
Which of the following is a gram-positive bacteria?

Streptococci
All of these
Staphylococci
Lactobacillus

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Microbiology
Verotoxin 1 of Escherichia coli is similar to

shiga toxin
heat-labile enterotoxin of E. coli
heat-stable enterotoxin of E. coli
cholera toxin

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MORE MCQ ON Microbiology

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