Question

5. Why is it necessary to sterilize the roots of rhizobia in this experiment? A. To prevent the destruction of rhizobia. B. To prevent the bacterial infection to us. C. To prevent the mixing of other bacteria with rhizobia. D. None of these. ​

Answer 1

Answer:

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B) To prevent the bacterial infection to us.

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Answer 2

Answer:- Option B

Explanation:- To prevent the bacterial infection to us.