|  | Association between X and Y | |
---|---|---|---|
 | Genetic relationship Between pregnant woman and offspring | Environmental Mediation | Genetic Mediation |
Homologous IVF | Yes | yes | yes |
Sperm donation | Yes | yes | yes |
Embryo donation | No | yes | no |
Egg donation | No | yes | no |
Gestational Surrogacy | No | yes | no |