MCQ
Root nodules for nitrogen fixation of a non-leguminous tree possess
- ✓Frankia
- BRhizobium
- CAzotobacter
- DThiobacillus
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| A. | I. Female |
| B. | II. Male |
| C. | III. Sex unspecified |
D.![]() | IV. Consanguineous mating |