I read some (epigenetics research) a while back that the surrogate mother's body can affect the expression of the baby’s genes. The research was discussed, environmental affects the way the genes are expressed.
Researchers have also found occurrences of fetal microchimerism (traces of Male DNA) in their mother's brain. There is also most likely traces of female DNA from their daughters too, just harder to find. I would assume that that fetal microchimerism would occur with any type of pregnancy.
Active_Volume_1759 t1_irkgvfk wrote
Reply to Does the size (weight, height) of the surrogate mother affect the adult size of the offspring? by [deleted]
I read some (epigenetics research) a while back that the surrogate mother's body can affect the expression of the baby’s genes. The research was discussed, environmental affects the way the genes are expressed.
Researchers have also found occurrences of fetal microchimerism (traces of Male DNA) in their mother's brain. There is also most likely traces of female DNA from their daughters too, just harder to find. I would assume that that fetal microchimerism would occur with any type of pregnancy.