title: Co-existence of non-histone messenger RNA species lacking and containing polyadenylic acid in sea urchin embryos.
mesh_terms: D000227:Adenine Nucleotides / Q000032:analysis*; D000818:Animals; D002499:Centrifugation, Density Gradient; D002846:Chromatography, Affinity; D002850:Chromatography, Gel; D004625:Embryo, Nonmammalian / Q000032:analysis; D006657:Histones; D009693:Nucleic Acid Hybridization; D011132:Polyribosomes / Q000032:analysis; D012333:RNA, Messenger / Q000302:isolation & purification; D012265:Ribonucleotides / Q000032:analysis; D012617:Sea Urchins / Q000032:analysis*; D013347:Subcellular Fractions / Q000032:analysis
chemical_list: D000227:Adenine Nucleotides; D006657:Histones; D012333:RNA, Messenger; D012265:Ribonucleotides