title: Changes within the chromatin during sea urchin embryogenesis. A study of ectodermic interphase nuclei with three-valent acetic iron (Hale) reagent.
mesh_terms: D000085:Acetates; D000818:Animals; D002021:Buffers; D002467:Cell Nucleus / Q000032:analysis; D002843:Chromatin; D004475:Ectoderm / Q000166:cytology*; D004625:Embryo, Nonmammalian / Q000166:cytology; D005069:Evaluation Studies as Topic; D005306:Fertilization; D006651:Histocytochemistry; D006652:Histological Techniques; D006657:Histones / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D007501:Iron; D012617:Sea Urchins / Q000166:cytology / Q000196:embryology*; D013194:Staining and Labeling; D014357:Trypsin
chemical_list: D000085:Acetates; D002021:Buffers; D002843:Chromatin; D006657:Histones; D007202:Indicators and Reagents; D007501:Iron; D014357:Trypsin