title: Did the primitive ribosomal RNA code primitive ribosomal protein?
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D005075:Biological Evolution; D005815:Genetic Code; D008433:Mathematics; D008954:Models, Biological; D014176:Protein Biosynthesis; D012333:RNA, Messenger / Q000378:metabolism; D012335:RNA, Ribosomal / Q000378:metabolism*; D012269:Ribosomal Proteins / Q000096:biosynthesis*
chemical_list: D012333:RNA, Messenger; D012335:RNA, Ribosomal; D012269:Ribosomal Proteins