The ribosomal RNA cistrons.
D000818:Animals; D001001:Anura; D001483:Base Sequence; D005075:Biological Evolution; D002417:Cattle; D002499:Centrifugation, Density Gradient; D002874:Chromosome Mapping; D002875:Chromosomes / Q000032:analysis; D004247:DNA / Q000032:analysis; D005787:Gene Frequency; D005796:Genes; D008040:Genetic Linkage; D000882:Haplorhini; D006801:Humans; D008970:Molecular Weight; D009693:Nucleic Acid Hybridization; D012313:RNA; D012333:RNA, Messenger; D012335:RNA, Ribosomal; D011817:Rabbits; D051381:Rats; D012270:Ribosomes; D013045:Species Specificity
D012333:RNA, Messenger; D012335:RNA, Ribosomal; D012313:RNA; D004247:DNA