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Microbiology of Soils

Microbiology of Soils
Which of the following is not the biofertilisers producing bacteria?

Nostoc
Both (a) and (b)
Anabaena
Clostridium

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Microbiology of Soils
Denitrification may be distinguished as

assimilative
dissimilative
blue baby syndrome
both (a) and (b)

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Microbiology of Soils
The nitrogenase consists of

dinitrogenase
none of these
both (a) and (b)
dinitrogenase reductase

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Microbiology of Soils
In the process of nitrogen fixation, which of the following microorganism is involved?

Non symbiotic and symbiotic microorganisms only
None of these
Non symbiotic microorganisms only
Symbiotic microorganisms only

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Microbiology of Soils
The diagnostic enzyme for denitrification is

nitrate oxidase
nitro oxidoreductase
none of these
nitrate reductase

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Microbiology of Soils
The population of algae in soil is __________ that of either bacteria or fungi.

none of these
generally greater than
generally smaller than
equal to

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