AIIMS 2015 Biology Question Paper for free online practice with solutions

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Question : 49 of 60

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Assertion (A) : Cyclic pathway of photosynthesis first appeared in some eubacterial sps.
Reason (R) : O2 started accumulating in the atmosphere after the non-cyclic pathway of photosynthesis evolve.

If both Assertion and Reason are true and Reason is correct explanation of Assertion.
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
If Assertion is true but Reason is false.
If both Assertion and Reason and false.

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