UK House of Commons Approves Bill to Allow Creation of ‘Three Parent Babies’The UK House of Commons has voted to approve a bill that would allow the creation of what has been called “three parent babies”—a move that some applaud as an important health advancement while others are concerned about the ethical aspects of the practice. The practice involves in vitro fertilization (IVF), during which genetic material from the mother’s fertilized egg is transferred to the fertilized egg of a healthy donor that has had its nuclear DNA removed. BBC News explains the first method: “Two eggs are fertilized with sperm, creating an embryo from the intended parents and another from the donors. The pronuclei, which contain genetic information, are removed from both embryos but only the parents’ are kept. A healthy embryo is created by adding the parents’ pronuclei to the donor embryo, which is finally implanted into the womb.” The second method is similar.  “Eggs from a mother with damaged mitochondria and a donor with healthy mitochondria are collected. The majority of the genetic material is removed from both eggs. The mother’s genetic material is inserted into the donor egg, which can be fertilized by sperm.” Therefore, the baby will contain the DNA of three people: the couple and their female donor. The Wellcome Trust Centre for Mitochondrial Research, which is behind the studies for the technique, said that the “nuclear DNA is not altered, and so mitochondrial donation will not affect the child’s appearance, personality or any other features that make a person unique.” Rather, the purpose of the IVF procedure is to help prevent mitochondrial disease among infants, which can lead to serious problems such as heart disease, muscular distrophy or blindness.  But during the debate in the House of Commons, some expressed hesitation over the medical advancement as they were concerned that it may cross ethical lines. “[This] will be passed down for generations, [and] the implications of this simply cannot be predicted,” member of parliament Fiona Bruce of Congleton told her colleagues. “But one thing is for sure, once this alteration has taken place, as someone has said, once the genie is out of the bottle, once these procedures that we’re asked to authorize today go ahead, there will be no going back for society.” More