One wants to isolate a microbe that is able to fix nitrogen. To do so, a sample suspected of containing a free-living, nitrogen fixing bacterium is placed in a medium that contains mineral salts, but no nitrogen source. The medium is incubated in a flask while exposed to the air. This is an example of

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     the Winogradsky flask.
      signature sequence analysis.
      the enrichment culture technique.
      the pure culture technique.
asked May 16, 2012 in Microbiology by anonymous
    

1 Answer

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the enrichment culture technique.
answered May 17, 2012 by Bioshare ~Top Expert~ (34,070 points)

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