alleryRoot nodules of legumes are formed by symbiosis with:
AAnabaena
BNostoc sp
CRhizobium
DGlomus sp
Answer & Solution
Correct answer: C. Rhizobium
1. The nodules are the site of nitrogen fixation.
2. A bacterium lives inside them in partnership with the plant.
3. That bacterium is Rhizobium.
4. So the answer is Rhizobium.
_Source: syllabus Biology, Ch 8 'Microbes in Human Welfare'_
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