title: Variations in the amounts of RNA polymerase forms I, II and III during preimplantation development in the mouse.
mesh_terms: D000546:Amanitins / Q000494:pharmacology; D000818:Animals; D012321:DNA-Directed RNA Polymerases / Q000037:antagonists & inhibitors / Q000378:metabolism*; D004622:Embryo, Mammalian / Q000201:enzymology*; D047108:Embryonic Development; D005260:Female; D005865:Gestational Age; D008099:Liver / Q000201:enzymology; D051379:Mice; D011247:Pregnancy; D012313:RNA / Q000096:biosynthesis
chemical_list: D000546:Amanitins; D012313:RNA; D012321:DNA-Directed RNA Polymerases