The enzyme responsible for atmospheric nitrogen fixation is [CPMT 1990 – McqOptions

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1.	The enzyme responsible for atmospheric nitrogen fixation is [CPMT 1990; AIIMS 2000; CBSE PMT 2001]
A.	Nitrogenase
B.	Hydrogenase
C.	Oxygenase
D.	Carboxylase
Answer» B. Hydrogenase

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