title: Transmission  electron microscopy of mouse blastocysts activated and growth-arrested in vivo and in vitro.
mesh_terms: D000818:Animals; D001755:Blastocyst / Q000648:ultrastructure*; D046508:Culture Techniques; D005260:Female; D006003:Glycogen / Q000032:analysis; D051379:Mice / Q000196:embryology*; D008855:Microscopy, Electron, Scanning; D011132:Polyribosomes / Q000648:ultrastructure; D011247:Pregnancy; D013997:Time Factors; D014327:Trophoblasts / Q000648:ultrastructure
chemical_list: D006003:Glycogen