The oxygen produced during photosynthesis comes from photolysis of wat – McqOptions

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1.	The oxygen produced during photosynthesis comes from photolysis of water was first time proved by [MP PMT 1984, 88, 95]
A.	Ruben and Kamen
B.	Robert Mayer
C.	Malvin Calvin
D.	Blackman
Answer» B. Robert Mayer

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