title: Evidence that the two ribosomal RNA species of plant tissue are synthesized on different genetic loci.
mesh_terms: D002499:Centrifugation, Density Gradient; D003609:Dactinomycin / Q000494:pharmacology; D005823:Genetics; D010759:Phosphorus Isotopes; D010944:Plants / Q000378:metabolism*; D012313:RNA / Q000096:biosynthesis*; D012343:RNA, Transfer / Q000096:biosynthesis*; D012270:Ribosomes / Q000378:metabolism*; D014461:Ultracentrifugation
chemical_list: D010759:Phosphorus Isotopes; D003609:Dactinomycin; D012313:RNA; D012343:RNA, Transfer