It seems like it should not be possible, but a recent case showed that sometimes a boy and a girl are born as semi-identical twins.
Published: March 8, 2019 at 01:00AM
from NYT Health https://ift.tt/2VOlhya
It seems like it should not be possible, but a recent case showed that sometimes a boy and a girl are born as semi-identical twins.
Published: March 8, 2019 at 01:00AM
from NYT Health https://ift.tt/2VOlhya