Update (2/25/15): Parliament passed the bill on Tuesday, 2/24, making Britain the first country to officially embrace this three-parent IVF technique.
The "three-parent" IVF technique benefited babies predisposed to genetic disorders because the donor's genes (contained in donated mitochondria) could "cancel" out any defected genes. But naysayers were concerned about the ethics of gene manipulation and the morals of "customizing" a baby to fit certain specifications. (Think: Gattaca)
Despite the concerns, Britain became the first country to begin legalizing the IVF procedure. The House of Commons voted 382 to 128 to approve a bill that would make "three-parent" babies official in the U.K. A similar procedure was also created in the U.S. over a decade ago, and a few benefited from having three-parent genes. But the procedure was eventually banned, reports The Washington Post
Later this month, Parliament will vote on the bill. If it passes again, the IVF technique will be legal in Britain starting in October.
Sherry Huang is a Features Editor for Parents.com who covers baby-related content. She loves collecting children's picture books and has an undeniable love for cookies of all kinds. Her spirit animal would be Beyoncé Pad Thai. Follow her on Twitter @sherendipitea
Photo: Test tubes indicating boy or girl babies via Shutterstock