Assertion. Cyanobacteria are the only photosynthetic nitrogen fixing prokaryotes producing oxygen. Reason. Oxygen is required for the activity of enzyme nitrogenase.A. If both Assertion and Reason are true and Reason is the correct explanation of Assertion.B. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.C. If Assertion is true but Reason is false.D. If both Assertion and Reason are false.

Assertion. Cyanobacteria are the only photosynthetic nitrogen fixing p

1.	Assertion. Cyanobacteria are the only photosynthetic nitrogen fixing prokaryotes producing oxygen. Reason. Oxygen is required for the activity of enzyme nitrogenase.A. If both Assertion and Reason are true and Reason is the correct explanation of Assertion.B. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.C. If Assertion is true but Reason is false.D. If both Assertion and Reason are false.
Answer» Correct Answer - C