Molecular evolution. rDNA world falling to pieces.
Dover
G A
GA
D000818:Animals; D003421:Crithidia / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics*; D009154:Mutation; D014176:Protein Biosynthesis; D012335:RNA, Ribosomal / Q000235:genetics*; D014158:Transcription, Genetic
D004275:DNA, Ribosomal; D012335:RNA, Ribosomal