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Kaplan Qbank USMLE



Author2 Posts
  #1

After 8 days a colony approximately 8 mm in diameter. There is no metallic green sheen. The color is purple to black and seems to be growing on top of itself like a scab. What would grow like this?


In another plate, a colony of fungus grew from white fuzzy covering then after a few days the area under the covering turns pink and after a few more days, it turns to the characteristic metallic green. What is this?

  #2

Hard to tell without seeing the colony. Are you sure these are bacterial colonies? Why do you want to know? Are these contaminants? Something you plated? For a class?

Need more clues. Could be anything.

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Clinical Microbiology since 1974







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