title: A method for chromosome preparation of sea urchin embryos.
mesh_terms: D000818:Animals; D001399:Azure Stains; D002875:Chromosomes; D005260:Female; D007621:Karyotyping / Q000379:methods*; D010063:Ovum / Q000648:ultrastructure; D012617:Sea Urchins / Q000235:genetics*; D013194:Staining and Labeling
chemical_list: D001399:Azure Stains