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  3. Haryana PMT

Haryana PMT Haryana PMT Solved Paper-2003

  • question_answer
    Which of the following is free-living, aerobic and non-photosynthetic nitrogen fixing bacterium?

    A)  Azospirillum     

    B)  Nostoc

    C)  Azotobacter                     

    D)  Rhizobium

    Correct Answer: C

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