Question
Classify the given organisms related to Nitrogen cycle in Column B.
[Nitrobacter, Rhizobium, Pseudomonas, Nitrosococcus)
| Column A | Column B |
| (1) Symbiont in root nodule | ————- |
| (2) Conversion of nitrite to nitrate | ———— |
| (3) Denitrification process | ————- |
| (4) Conversion of ammonia to nitrite | ————- |
Study the linking of DNA fragments shown above.