Multiple Choice
After mutagenesis, the nitrogen-fixing bacterium Sinorhizobium meliloti could no longer colonize Medicago truncatula plants. This inability to colonize was due to the absence of recognition by the host plant. Which of the following genes is most likely the site of the mutation in these bacteria?
A) nitrogenase
B) flavonoid-synthesizing enzyme
C) Nod factors
D) leghemoglobin
E) peptidoglycans of the bacterial cell wall
Correct Answer:

Verified
Correct Answer:
Verified
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