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  • Which of the following is a symbiotic nitrogen fixer ?Option: 1 AzotobacterOption: 2 Franki

Which of the following is a symbiotic nitrogen fixer ?

Option: 1

Azotobacter


Option: 2

Frankia


Option: 3

Azolla


Option: 4

Glomus


Answers (1)

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Symbiotic nitrogen fixation is a process found in plants that contain nitrogen-fixing bacteria in their tissues. Microorganisms that can fix nitrogen include various prokaryotes, cyanobacteria, and nitrogen-fixing bacteria such as Azotobacteraceae, Rhizobium, and Frankia. While legumes live in symbiosis with rhizobia to fix nitrogen, non-legumes use frankia in their symbiotic relationships. Hence, the correct option is 2. 

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shivangi.shekhar

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