title: Ampicillin-resistance, a background to the use of this bacterial genetic marker in the presence of mammalian material.
mesh_terms: D000668:Ampicillin Resistance / Q000235:genetics*; D000818:Animals; D005819:Genetic Markers; D008322:Mammals / Q000235:genetics; D009152:Mutagenicity Tests / Q000379:methods
chemical_list: D005819:Genetic Markers