title: The onset of immunoglobulin synthesis during the development of Xenopus laevis.
mesh_terms: D000818:Animals; D007147:Immunoglobulin Light Chains / Q000096:biosynthesis* / Q000302:isolation & purification; D007075:Immunoglobulin M / Q000096:biosynthesis*; D011863:Radioimmunoassay; D014981:Xenopus / Q000196:embryology / Q000254:growth & development / Q000276:immunology*
chemical_list: D007147:Immunoglobulin Light Chains; D007075:Immunoglobulin M