Q. The most important of the symbiotic nitrogen fixing bacteria, which forms nodules on the roots of legume plants is
A) Aspergillus
B) Rhizobium
C) Penicilium
D) Streptococcus
Explanation
Rhizobium are soil bacteria that fix nitrogen after becoming established inside root nodules of legumes (Fabaceae). Rhizobia require a plant host; they cannot independently fix nitrogen
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.