Year in review: ‘Three-parent baby’ technique raises hope and concern

Safety and ethical questions surround controversial mitochondrial replacement therapy

Embryo

SPINDLE SWAP  A boy born in April has DNA from mom and dad, as well as mitochondria from a female donor. To make "three-parent" embryos, the chromosome-containing spindle, shown at the tip of the pipette, is removed from a woman's egg and inserted into a donor egg.

Center for Embryonic Cell and Gene Therapy/Oregon Health & Science Univ.

This article is only available to Science News subscribers.

Subscribers, enter your e-mail address to access our archives.

Not a subscriber?

Science News is a nonprofit.

Support us by subscribing now.

More Stories from Science News on Genetics

From the Nature Index

Paid Content