Refinery 29: Three-Parent Babies Actually Exist — & This Is How They’re Conceived

May 31, 2017

Last year, John Zhang, a New York endocrinologist who specializes in fertility, generated controversy when he announced that he helped a couple in Mexico have the first baby conceived with the genetic material of three different adults.

Many scientists were concerned that not enough research had been done to ensure that the procedure would be safe and that the baby would grow up healthy. But regardless of pushback, this baby's existence as well as the UK giving the official go-ahead for doctors to perform a similar procedure has raised a question: how is this even possible?

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