Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Biology Plant Physiology Mineral Nutrition
Which among the following microorganisms are important in biological N2 fixation and nodulation in roots ?
(a) Rhizobium
(b) Azotobacter
(c) Rhodospirillum
(d) Frankia
1
(a) and (d)
2
(c) and (d)
3
(a) and (c)
4
More than one of the above
5
None of the above