The Proteobacteria is classified into how many classes?

1. 5 classses
2. 8 Classes
3. 9 Classes
4. 10 classes
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Answer: A
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Which one is characteristic of alphabacteria ?

1. They grow at low nutrients
2. They grow only high nutrition content
3. They require high pH
4. All of these
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Answer: A
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Bacteria that cause niteogen fixation by symbiosis with plants belong to which of the following class?

1. Alphaprobacteria
2. Betaprobacteria
3. Gammaprobacteria
4. Deltaprobacteria
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Answer: A
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Which of the following bacteria grow in roots of plants?

1. Pelagobacter
2. Azospirillium
3. Rickettsia
4. Hyphomicrobium
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Answer: B
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What does meant by prefix -azo?

1. Without life
2. Without Nitrogen
3. Without animals
4. Without Oxygen
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Answer: A
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The Rhickettsia species transfer to human by which of the following ways?

1. Insect bite
2. Ticks bites
3. Animal bites
4. Both A and B
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Answer: D
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Which of the following pathogen is intracellular parasite?

1. Chlamydia
2. Coxiella
3. Rickettsia
4. All of these
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Answer: D
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Causative agent of spotted fever group is __________

1. Rickettsia prowazekii
2. R.Typhi
3. R.rickettsia
4. All of these
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Answer: A
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Causative agent of murine typhus is _______

1. R. prowazekii
2. R. typhi
3. R. rickettsii
4. None of these
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Answer: B
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Causative agent of Rocky Mountain Spotted Fever is _______

1. R.prowazekii
2. R.typhi
3. R. rickettsii
4. None of these
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Answer: C
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