Possible evolutionary steps in the genetic code.
D000926:Anticodon / Q000235:genetics; D005075:Biological Evolution; D003062:Codon / Q000235:genetics; D004272:DNA, Mitochondrial / Q000235:genetics*; D005815:Genetic Code; D009491:Neurospora / Q000235:genetics; D012343:RNA, Transfer / Q000235:genetics; D013045:Species Specificity
D000926:Anticodon; D003062:Codon; D004272:DNA, Mitochondrial; D012343:RNA, Transfer