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
• B. A- 1, B- 2, C- 3, D- 4
  
• C. A- 2, B- 1, C- 5, D- 4
  
• D. A- 5, B- 4, C- 1, D- 3
  

Answer 1

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.