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Genetic Linkage

Why I Hate the Term “3-Parent Baby’”

A healthy baby boy has been born following mitochondrial manipulation technology (MMT). It was bound to happen, and might offer an alternative for some women who carry a mitochondrial disease.

The feat, accomplished by John Zhang, MD, PhD, medical director and founder of New Hope Fertility in New York City, but done in Mexico, will be presented at an upcoming conference and is abstracted in a medical journal (Fertility + Sterility), but hit the headlines first in New Scientist on Tuesday. An odd choice for an announcement, but the excellent article shows some restraint in using the term “3-parent technique”. Still, it unleashed a fresh barrage of “3-parent” and “designer” baby maddening memes.

The last time “3-parent baby” hit the media, I wrote "Mitohype: 3-Parent Designer Babies Who Will Change Human Evolution". I began that post, “If I turned in a 20,337 word article and the editor decided to replace 37 of those words, would I call her a co-author? Certainly not”.

In a nutshell, 37 genes do not a parent make. I say that as a parent, not a geneticist. Read More 
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