title: High-resolution density-gradient analysis of sea urchin polysomes.
mesh_terms: D000818:Animals; D002247:Carbon Isotopes; D004447:Echinodermata / Q000032:analysis* / Q000166:cytology; D004625:Embryo, Nonmammalian / Q000032:analysis*; D010649:Phenylalanine / Q000378:metabolism; D011189:Potassium Chloride; D012270:Ribosomes / Q000032:analysis*; D013053:Spectrophotometry
chemical_list: D002247:Carbon Isotopes; D010649:Phenylalanine; D011189:Potassium Chloride