title: Studies on the mutability of Escherichia coli K12. I. Suppression and high spontaneous mutation in a threonine auxotroph.
mesh_terms: D003227:Conjugation, Genetic; D003433:Crosses, Genetic; D004926:Escherichia coli; D009154:Mutation; D011995:Recombination, Genetic; D013912:Threonine
chemical_list: D013912:Threonine