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Nitrogen fixation in root nodules of Aln...

Nitrogen fixation in root nodules of Alnus is brought about by

A

Frankia

B

Azorhizobium

C

Bradyrhizobium

D

Clostridium

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The correct Answer is:
A
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ALLEN-DIVERSITY IN LIVING WORLD (PLANT DIVERSITY)-EXERCISE-II
  1. Cellulose is the major component of cell walls of

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  2. Bacterial leaf blight of rice is a caused by a species of

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  3. Nitrogen fixation in root nodules of Alnus is brought about by

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  4. Which one of the following has haplontic life cycle?

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  5. Mannitol is the stored food in

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  6. Which one of the following is a vascular cryptogam?

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  7. Polygenetic system of classification is based on :

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  8. Oxygenic photosynthesis occurs in

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  9. Which one of the following is considered important in the development ...

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  10. Which one of the following plants is monoecious?

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  11. Which one is the wrong pairing for the disease and its causal organism...

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  12. Which out of the following is a symbiotic nitrogen fixer and enriches...

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  13. Which one of the following is commonly used in transfer of foreign DNA...

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  14. Some hyperthermophilic organisms that grow in highly acidic (pH 2) hab...

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  15. Male and female gametophytes are independent and freeliving in:

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  16. Single-celled eukaryotes are included in Kingdom

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  17. Algae have cell wall made up of

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  18. Membrane-bound organelles are absent in:

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  19. The chief water conducting elements of xylem in gymnosperms are

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  20. One of the free-living, anaerobic nitrogenfixer is

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