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Q. No.Which one of the following produces nitrogen fixing nodules on the roots of Alnus ??
1. Beijernickia
2. Rhizobium
3. Frankia
4. Rhodospirillum
1. Beijernickia
2. Rhizobium
3. Frankia
4. Rhodospirillum
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Subtopic: Â Genetics & Biochemistry of Nitrogen Fixation |
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