You have two bacterial samples with similar colony morphology but suspect they might be different species. Which specialised method would best confirm their identities?

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Use disc diffusion to compare their antibiotic resistance profiles

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Inoculate both samples onto solid agar and compare colony morphology

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Use an API test panel to assess their metabolic reactions

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Perform a Gram stain to classify the samples as Gram-positive or Gram-negative

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You have two bacterial samples with similar colony morphology but suspect they m...

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