Aggregation of embryos and embryonic stem cells.
D000818:Animals; D002449:Cell Aggregation; D018929:Cell Culture Techniques; D002459:Cell Fusion; D002585:Cesarean Section; D004624:Embryo Transfer; D004622:Embryo, Mammalian / Q000166:cytology*; D005314:Embryonic and Fetal Development; D005260:Female; D005818:Genetic Engineering; D007621:Karyotyping; D051379:Mice; D011123:Polyploidy; D013234:Stem Cells / Q000166:cytology*