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Question

Match column I with column II and select the correct option.

List I List II
A Aerobic 1 Frankia
B Cyanobacteria 2 Azospirillum
C Casuarina 3 Clostridium
D Tropical grass 4 Aulosira
5 Azotobacter

A
A- 5, B- 4, C- 1, D- 2
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B
A- 1, B- 2, C- 3, D- 4
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C
A- 2, B- 1, C- 5, D- 4
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D
A- 5, B- 4, C- 1, D- 3
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Solution

The correct option is A A- 5, B- 4, C- 1, D- 2
Frankia is a genus of nitrogen-fixing, filamentous bacteria that live in symbiosis with actinorhizal plants belong to the genus Casuarina.
Azospirillum oryzae is a species of nitrogen-fixing bacteria associated with the roots of Oryza sativa, which is a grass.
Aulosira is a genus of Cyanobacteria found in a variety of environmental niches that forms colonies composed of filaments of moniliform cells.
Azotobacter is a genus of usually motile, oval or spherical bacteria. They are aerobic, free-living soil microbes, which play an important role in the nitrogen cycle. Thus, the correct answer is option A.

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