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Which rod-shaped microbe forms nodules on legume roots?
ARhizobium
BRhizopus
CRhizoctonia
DRhizosphere
Answer & Solution
Correct answer: A. Rhizobium
1. It associates with alfalfa, clover and pea.
2. The association shows as root nodules.
3. It is Rhizobium.
_Source: NCERT Class 11 Biology, Ch 12 'Mineral Nutrition'_
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