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Question
The fixation of free nitrogen from the air in the nodules of roots of leguminous plants is done by symbiotic bacteria
The fixation of free nitrogen from the air in the nodules of roots of leguminous plants is done by symbiotic bacteria
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Solution
The correct option is B Rhizobium
Nitrogen fixation is the process of fixation of free nitrogen from the atmosphere. This is done by symbiotic bacteria like Rhizobium. They are in symbiotic association with the the root nodules. They provide nitrogen to the plant. In return, they get shelter from the plant. Azotobacter are free living nitrogen fixing bacteria.Thus, the correct answer is 'Rhizobium.'
Nitrogen fixation is the process of fixation of free nitrogen from the atmosphere. This is done by symbiotic bacteria like Rhizobium. They are in symbiotic association with the the root nodules. They provide nitrogen to the plant. In return, they get shelter from the plant. Azotobacter are free living nitrogen fixing bacteria.
Thus, the correct answer is 'Rhizobium.'
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