Question
Sequence the principal stages of biological nitrogen
fixation in their correct order of occurence- (A). Formation of infection thread (B). Rhizobium multiply to colonise. (C). Curling of root hair (D). Differentiation of cortical cells into nitrogen fixing cells Choose the correct answer from the options given below.Solution
The sequence for nitrogen fixation by Rhizobium in legumes involves: (B) Rhizobium multiply to colonize: Bacteria colonize the root surface. (C) Curling of root hair: Root hairs curl in response to bacterial signals.
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