title: Evolutionary conservation of the human 7 S RNA sequences.
mesh_terms: D000818:Animals; D001483:Base Sequence; D005075:Biological Evolution; D002645:Chickens; D004247:DNA; D004274:DNA, Recombinant; D006367:HeLa Cells; D006801:Humans; D051379:Mice; D009693:Nucleic Acid Hybridization; D012313:RNA; D012617:Sea Urchins; D014982:Xenopus laevis
chemical_list: D004274:DNA, Recombinant; D012313:RNA; D004247:DNA