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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The judge showed clemency to the defendant by reducing their sentence due to their expression of remorse and efforts at rehabilitation.
Drexler's movement received attention and support through some influential figures.Â
Select the correctly punctuated sentence from the options below.
The Centre’s bid to dispel the pall of gloom over the economy (have been helped) in recent weeks by a rating.
Fill in the blanks with appropriate prepositions from among the choices given below them.
The cricketers walked ______ the field to check the pitch.
Add suitable question tags to the following statements from among the choices given below them:Â
Myna ran her bicycle over a colony of ants, _...
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