HOW IVF BABIES ARE MADE #InvitroFertilization In vitro fertilization (IVF) is the joining of a woman's egg & a man's sperm in a laboratory dish. This combination forms the first cell, the zygote (a fertilized egg), which performs it’s first cell division approximately 24-30 hours after fertilization. In this video, we witness a blastomere biopsy being performed, where the removed cells are used for preimplantation genetic diagnosis (PGD) or to look for specific gene defects. In the first part of