title: Genes coding for polysomal 9S RNA of sea urchins: conservation and divergence.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002499:Centrifugation, Density Gradient; D004247:DNA; D004591:Electrophoresis, Polyacrylamide Gel; D005815:Genetic Code; D006657:Histones / Q000096:biosynthesis; D008970:Molecular Weight; D009693:Nucleic Acid Hybridization; D011132:Polyribosomes / Q000378:metabolism*; D012333:RNA, Messenger / Q000096:biosynthesis* / Q000302:isolation & purification / Q000378:metabolism; D012335:RNA, Ribosomal / Q000096:biosynthesis* / Q000302:isolation & purification / Q000378:metabolism; D012260:Ribonucleases / Q000378:metabolism; D012617:Sea Urchins / Q000378:metabolism*; D013045:Species Specificity; D014316:Tritium; D014529:Uridine / Q000378:metabolism
chemical_list: D006657:Histones; D012333:RNA, Messenger; D012335:RNA, Ribosomal; D014316:Tritium; D004247:DNA; D012260:Ribonucleases; D014529:Uridine