title: Exons encode protein functional units.
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D005796:Genes; D007074:Immunoglobulin G / Q000235:genetics; D011506:Proteins / Q000235:genetics*; D012333:RNA, Messenger / Q000235:genetics
chemical_list: D007074:Immunoglobulin G; D011506:Proteins; D012333:RNA, Messenger