NEET Biology question

Which of the following statements about biofertilisers is INCORRECT?

(A)Rhizobium forms a symbiotic nitrogen-fixing association with leguminous plant roots
(B)Azotobacter is a symbiotic nitrogen-fixing bacterium found only in root nodulesCorrect
(C)Mycorrhiza enhances phosphorus absorption in plants
(D)Cyanobacteria add organic matter and fix nitrogen in the soil

Answer: (B)

Solution

Azotobacter is a free-living (non-symbiotic) nitrogen-fixing bacterium found in the soil, not one restricted to

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Question ID VK-124760