Class/Course - Medical Entrance

Subject - Biology

Chapter - Kingdom Monera and Viruses

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Q.1 All of the following statements concerning the Actinoycetous filamentous soil bacterium Frankia are correct except that Frankia
  can induce root nodules on many plant species
  cannot fix nitrogen in the free-living state
  forms specialized vesicles in which the nitrogenase is protected from oxygen by a chemical barrier involving triterpene hepanoids
  like Rhizobium, it usually infects its host plant through root hair deformation and stimulates cell proliferation in the host's cortex