With reference to the root nodules shown in the following diagram,select the correct option.

  • A
    Galls containing Anabaena
  • B
    Root nodules having Rhizobium phaseoli
  • C
    Root nodules having Rhizobium leguminosarum
  • D
    Galls containing Azospirillum

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Similar Questions

$A$ legume having symbiotic association with two nitrogen-fixing bacteria ($Rhizobium$ and $Aerorhizobium$) is

Leguminous plants are important in agriculture because ....

Which of the following plants does not have $Rhizobium$-containing root nodules?

Arrange the stages of root nodule formation in the correct sequence:
$I-$ Infection thread is produced.
$II-$ Bacteria are carried to the cortex of the root.
$III-$ Bacteria attach to the root hair.
$IV-$ Bacteria are released from the thread into the cells.
$V-$ Differentiation into nitrogen-fixing cells occurs.

Which of the following is correct regarding nitrogen fixation by legumes? They fix nitrogen through:

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