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Microbiology

Microbiology
Primarily human pathogenic bacteria is/are ,

all of these
S paratyphi B
S paratyphi A
Salmonella typhi

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Microbiology
Which of the following can readily kill Salmonellae?

Moist heat at 55°C for 10 min
Moist heat at 55°C for 1 hr
Moist heat at 55°C for 30 min
Moist heat at 55°C for 20 min

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Microbiology
The most important bacterium developing acidity in both low and high salt brines is

B. subtilis
L. plantarum
L. brevis
L. lactis

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Microbiology
Which of the following media is selective for Salmonella?

Bile salt agar
Thiosulphate citrate bile salt agar
Wilson and Blair's brilliant-green bismuth sulphite agar medium
All of these

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Microbiology
Enterobacter can be differentiated from Klebsiella by

none of these
ornithine positivity
motility
both (a) and (b)

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Microbiology
The botulism intoxication occurs due to

neurotoxin
mycotoxin
all of these
an enterotoxin

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