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CEBS Genetic Toxicology: Bacterial Mutagenicity Data

The bacterial mutagenicity test, or Ames Assay, is used to assess whether a test article causes genetic damage. These data are bacterial colony counts.
This data domain is part of Chemical Effects in Biological Systems (CEBS) database maintained by the National Toxicology Program.

At the link provided is a PDF and one or more folders containing data. The PDF describes the data, file types, and folder structure present.

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