Ukraine Is Now Home to the World’s First Three-Parent Baby

Doctors have announced the first successful birth of a baby with DNA from three people. The baby girl was born to an infertile couple, with the assistance of an egg donor, on January 5th in Ukraine.
This procedure, known as mitochondrial donation, has been used previously as an alternative for mothers whose mitochondrial DNA is unhealthy and thus would otherwise be likely to produce babies with genetic disorders. However, this is the first time the procedure has been used to treat infertility, and was given a new name—pronuclear transfer—as a result.
The process began when a doctor fertilized the mother’s egg with her partner’s sperm. The doctor then transferred those combined genes, called a pronucleus, into an egg from a donor. This egg was then implanted into the mother’s womb, where it developed for a typical nine months. When the baby was born, it carried the DNA from all three of the participating adults.