(C) The correct answer is $C$. Cyanobacteria (such as $Nostoc$ and $Anabaena$) are unique because they contain chlorophyll $a$ for oxygenic photosynth

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(C) The correct answer is $C$. Cyanobacteria (such as $Nostoc$ and $Anabaena$) are unique because they contain chlorophyll $a$ for oxygenic photosynthesis and specialized cells called heterocysts for nitrogen fixation.

Class 11 Biology Biological Classification Monera (Prokaryotes)

Medium

Which of the following microorganisms possess the property of both photosynthesis and nitrogen fixation?

A
Azotobacter
B
Rhizobium
C
Cyanobacteria
D
Clostridium

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Monera (Prokaryotes)

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Which of the following microorganisms possess the property of both photosynthesis and nitrogen fixation?

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