Nope, it's not what you're thinking. This was made possible through in vitro fertilization, but more than that, it had to be done "in order to overcome a woman's infertility due to mitochondrial disease."
It's unprecedented, the medical procedure has only been done once with much controversy, and though it was done successfully without any complications in childbirth, it still raises concerns in the scientific community. The ethics of the procedure is being questioned.
The experimental form of IVF uses an egg from the mother, sperm from the father, and another egg from a donor woman.
Combining the mother's DNA with the donor's mitochondria is thought to prevent mitochondrial disease. The child, who is a boy, derives a tiny amount of his genetic makeup from the donor woman as mitochondria contain DNA.
We don't know what effects this would have on the child with regard to his development but for now, the parents welcome a new member into their family which should be enough cause for good cheer.
(Image credit: qimono/Pixabay)