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easyMCQNEET 20222026Biology
1 mark

Which one of the following produces nitrogen fixing nodules on the roots of Alnus?

  1. A
    Rhizobium
  2. B
    Frankia
  3. C
    Rhodospirillum
  4. D
    Beijerinckia

Solution & Step-by-step Explanation

Rhizobium forms nodules on leguminous plants. However, the filamentous nitrogen-fixing bacterium Frankia produces nitrogen-fixing nodules on the roots of non-leguminous plants like Alnus .

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Which one of the following produces nitrogen fixing nodules on the roots of Alnus?
A
Rhizobium
B
Frankia
C
Rhodospirillum
D
Beijerinckia

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plant physiologynitrogen fixation

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