title: The origin of immunoglobulins in opossum "embryos".
mesh_terms: D000818:Animals; D000831:Animals, Newborn / Q000276:immunology*; D002848:Chromatography, DEAE-Cellulose; D004591:Electrophoresis, Polyacrylamide Gel; D005260:Female; D007122:Immunoelectrophoresis; D007070:Immunoglobulin A / Q000302:isolation & purification; D007074:Immunoglobulin G / Q000302:isolation & purification; D007075:Immunoglobulin M / Q000302:isolation & purification; D007136:Immunoglobulins / Q000378:metabolism*; D008297:Male; D009893:Opossums / Q000276:immunology*; D013997:Time Factors
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007136:Immunoglobulins