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With regard to the biological nitrogen f...

With regard to the biological nitrogen fixation by Rhizobium in association with soya bean, which one of the following statement/statements does not hold true?

A

1. Nitrogcnase may require oxygen for its functioning

B

2. Nitrogenase is Mo - Fe protein

C

3. Leg-hemoglobin is a pink coloured pig- ment

D

4.Nitrogenase helps to convert `N_2` gas into two molecules of ammonia

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The correct Answer is:
a
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