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Microbiology

Microbiology
Bacteria are

symbiotic
all of these
hyper parasitic
saprophytic

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Microbiology
Yersinia enterocolitica and Y. pestis can be differentiated on the basis of which of the following tests?

All of these
Fermentation of sucrose and cellobiose
Decarboxylation of ornithine
Motility at 22°C

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Microbiology
Which of the following species/subspecies of Klebsiella produce indole?

K pneumoniae subspecies pneumoniae
K oxytoca
K pneumoniae subspecies aerogenes
K pneumoniae subspecies rhinoscleromatis

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Microbiology
Gassy spoilage of green olives is usually caused by

all of these
Enterobacter spp
Clostridium spp
Bacillus spp

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Microbiology
Spirochaetes exhibit

flexion and extension motility
translatory motion
corkscrew-like rotatory movement
All of these

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Microbiology
Which of the following property(ies) is/are seen in the members of family Enterobacteriaceae?

They reduce nitrates to nitrites
They are oxidase-negative
They are catalase-positive
They ferment glucose

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