A) oxygen removal
B) inhibition of nitrogenase activity
C) expression of nif gene
D) nodule differentiation
Correct Answer: A
Solution :
Leghaemoglobin is pink/red pigment found in root. nodules of leguminaceous plants. It is an oxygen scavenger and hunts for\[{{O}_{2}}\]molecules and creates anaerobic condition necessary for biological nitrogen fixation by Rhizobium in legumes.
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