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NEET2012BotanyMineral NutritionActual

Which one of the following is wrong statement?

Options

  1. AAnabaena and Nostoc are capable of fixing nitrogen in free-living state also
  2. BRoot nodule forming nitrogen fixers live as aerobes under free-living conditions
  3. CPhosphorus is a constituent of cell membranes, certain nucleic acids and all proteins
  4. DNitrosomonas and Nitrobacter are chemoautotrophs

Correct answer

C. Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins

Step-by-step solution

Phosphorus is a component of DNA and RNA but not proteins.

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