title: Macromolecule synthesis and determination in sea urchin blastomeres at the sixteen-cell stage.
mesh_terms: D000818:Animals; D002474:Cell-Free System; D003609:Dactinomycin / Q000494:pharmacology; D004625:Embryo, Nonmammalian / Q000166:cytology / Q000378:metabolism*; D006657:Histones / Q000096:biosynthesis; D014176:Protein Biosynthesis; D012313:RNA / Q000378:metabolism; D012617:Sea Urchins
chemical_list: D006657:Histones; D003609:Dactinomycin; D012313:RNA