Question

व्हिच आर द माइक्रो ऑब्जर्वर इन रूट नोड्यूल्स इन बीन प्लांट​

Answer 1

Answer:

Rhizobia are diazotrophic bacteria that fix nitrogen after becoming established inside the root nodules of legumes (Fabaceae). To express genes for nitrogen fixation, rhizobia require a plant host; they cannot independently fix nitrogen.[1] In general, they are gram negative, motile, non-sporulating rods.