title: Block of histone synthesis in isolated sea urchin cells actively synthesizing DNA.
mesh_terms: D000818:Animals; D002469:Cell Separation; D002478:Cells, Cultured; D004247:DNA / Q000096:biosynthesis*; D004625:Embryo, Nonmammalian; D006657:Histones / Q000096:biosynthesis*; D012617:Sea Urchins; D014357:Trypsin / Q000494:pharmacology*
chemical_list: D006657:Histones; D004247:DNA; D014357:Trypsin