title: Why is 5-fluorouracil a mutagen?
mesh_terms: D001483:Base Sequence; D005472:Fluorouracil / Q000494:pharmacology*; D006860:Hydrogen Bonding; D008956:Models, Chemical; D009153:Mutagens / Q000494:pharmacology*; D009690:Nucleic Acid Conformation; D011789:Quantum Theory; D013816:Thermodynamics
chemical_list: D009153:Mutagens; D005472:Fluorouracil