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  3. BHU PMT

BHU PMT BHU PMT Solved Paper-2003

  • question_answer
    The non-photosynthetic, non-symbiotic \[{{N}_{2}}\]fixing bacteria are :

    A) Rhodobacter                     

    B) Spirillum

    C) Azotobacter                      

    D) All of these

    Correct Answer: C

    Solution :

                   
    Feature Organism
    Non-photosynthetic, non-symbiotic, \[{{\text{N}}_{\text{2}}}\text{-}\]fixing bacteria Azotobactor, Rhodospirillum
    Symbiotic \[{{\text{N}}_{\text{2}}}\text{-}\]fixing bacteria Rhizobium
    Non-symbiotic, nitrogen fixing cyanobacteria Anabaena, Nostoc.


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