This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Amino Acids Basics, Subject name: Biochemistry
Nitrogen fixation is done by which plant - 
Select and explain. 
A. Legumes, B. Nuts, C. Cereales, D. Vegetables
A: Legumes
Answer: A: Legumes 
Explanation: Ans. is 'a' i.e., Legumes"Probably the most important form of agricultural nitrogen fixation is carried out by rhizobium-legume symbiosis in the root nodule of legumes".o Legumes are an important plant functional group since they can form a tripartite symbiosis with nitrogen fixing 'Rhizobium9 bacteria and phosphorus - acquiring arbuscular mycorrhizalfungi (AMF).