title: De novo gene duplication versus reactivation of cryptic genes in Escherichia coli K-12.
mesh_terms: D001120:Arginine; D002875:Chromosomes; D004926:Escherichia coli / Q000166:cytology*; D005796:Genes; D005827:Genetics, Microbial; D009154:Mutation
chemical_list: D001120:Arginine