The first codon and its descendants.
Pennisi
E
E
D000596:Amino Acids / Q000235:genetics / Q000378:metabolism; D003062:Codon; D012333:RNA, Messenger / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism; D012091:Repetitive Sequences, Nucleic Acid; D012270:Ribosomes / Q000378:metabolism
D000596:Amino Acids; D003062:Codon; D012333:RNA, Messenger