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1 It is a Friday afternoon and you head to the lab to inspect the...

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Biology

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1 It is a Friday afternoon and you head to the lab to inspect the Simmons citrate agar bacterial samples that you inoculated on Wednesday of the same week The samples were all grown at 37 C You do not observe any growth in the tube for your test sample nor for the negative control However the positive control grew just fine You decide your tested bacteria cannot utilize citrate as a sole carbon source Planning to dispose of the samples on Monday you simply place the samples in a test tube rack at room temperature in the biosafety hood where they will be safe until your return When you return to the lab on Monday you notice that your unknown sample has abundant growth and the media is completely blue Your negative control sample still does not exhibit growth and remained green Based on this what can you conclude about your test specimen Be sure to explain your reasoning and provide details from the scenario that support your conclusion

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