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Microbiology of Soils

Microbiology of Soils
Assimilative denitrification is done by

all of these
prokaryotes
fungi
plants

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Microbiology of Soils
The breakdown of cattle manure in biogas is accomplished by which of the following type of bacteria?

Transitional
All of these
methanogenic
Hydrolytic

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Microbiology of Soils
The diagnostic enzyme for denitrification is

nitro oxidoreductase
nitrate oxidase
nitrate reductase
none of these

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

generally smaller than
none of these
generally greater than
equal to

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

Both (a) and (b)
Nostoc
Anabaena
Clostridium

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Microbiology of Soils
Which of the following fungi on infecting crop roots can improve their uptake of phosphorus and other nutrients?

Candida torulopsis
Aspergillus niger
Saccharomyces cerevisiae
VA Mycorrhiza

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