Question

• Which of the following organism
involved in root-nodule formation?

Answer
A. Nostoc
B. Rhizobium
C. Azotobacter
D. None of above.​

Answer 1

Answer:

B

Explanation:

nodule formation occur by -rhizobium

Answer 2

Answer:

b rhizobiun

Root nodules are found on the roots of plants, primarily legumes, that form a symbiosis with nitrogen-fixing bacteria. Under nitrogen-limiting conditions, capable plants form a symbiotic relationship with a host-specific strain of bacteria known as rhizobia.