JIPMER2014BotanyMineral Nutrition

Which of the following is responsible for biological nitrogen-fixation?

Options

ANife gene
BNitrogenase
CYeast alanin tRNA synthetase
DRNA synthetase

Correct answer

A. Nife gene

Step-by-step solution

Azo tobacterk and clostrodium are free livingnitrogen fixing are microorganisms. VAM is symbiotic relationship between fungi and higher plants. Nif gene is responsible for biological nitrogen-fixation, which directs the synthesis of nitrogenase enzyme.

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