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Which of the following gene clusters i...

Which of the following gene clusters in bacteria is responsible for nitrogen fixation ?

A

nod, nif, fix

B

nod, ndf, nfx

C

nod, nix, nfx

D

ndx, nif, fix

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TRUEMAN BIOLOGY-MINERAL NUTRITION-MULTIPLE CHOICE QUESTIONS
  1. Which of the following is non-symbiotic ?

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  2. The most important function of Rhizobium is

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  3. Which of the following gene clusters in bacteria is responsible for ...

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  4. N(2) fixation is

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  5. The process of N(2) fixation in root nodules is controlled by

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  6. Enzyme involved in nitrogen assimilation

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  7. Nitrate reductase forms

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  8. If by radiation all nitrogenase enzymes are inactivated then there wi...

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  9. Plants that have mutualistic relations with nitrogen-fixing bacteria ...

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  10. Plants that have mutualistic relations with nitrogen-fixing bacteria ...

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  11. Nitrosomonas and Nitrosococcus promote

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  12. The Nitrobacter and Nitrocystis

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  13. Reduction is the term used when conversion of ……… takes place

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  14. Certain bacteria living in the soil poor in oxygen convert nitrates in...

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  15. Bacteria which break down the dead organisms of the soil into nitrogen...

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  16. The nodules in a plant root where nitrogen fixing bacteria live forms ...

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  17. The source of energy for non-biological nitrogen fixation is

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  18. Vicia faba and pisum sativum are recommended for rotaion of crops beca...

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  19. Nitrogen fixing enzyme in root nodule is

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  20. Which of the following is an incorrect match ?

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