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Which one of the following is a wrong statement?A. Root nudule forming nitrogen fixers live as aerobesunder free-living conditions.B. Phosphorus is a constituent of cell membranes, certain nucleic acids, and all proteins.C. Nitrosomonas and Nitrobacter are chemoautotrophs.D. Anabaena and Nostoc are capable of fixing nitrogen in free-living state also.

Answer» Correct Answer - A


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