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    • Question

      Which one of the following is aerobic asymbiotic

      N₂-fixing bacteria?
      A Rhizobium Correct Answer Incorrect Answer
      B Frankia Correct Answer Incorrect Answer
      C Clostridium Correct Answer Incorrect Answer
      D Azotobactor Correct Answer Incorrect Answer

      Solution

      Azotobacter is a genus of free-living bacteria that can fix atmospheric nitrogen in the absence of a symbiotic relationship with plants. It is capable of carrying out nitrogen fixation aerobically, meaning it can fix nitrogen in the presence of oxygen.

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