Mitochondria variants battle for cell supremacy
DNA features give some organelles advantage in 3-parent baby procedures
![needle with spindle and egg](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/11/113016_TI_3parentbaby_main.jpg?fit=860%2C460&ssl=1)
BATTERY SWAP A technique to suck a chromosome-containing structure called the spindle (white, in needle) out of a mother’s egg and place it in a donor egg emptied of its chromosomes but with healthy mitochondria can help prevent mitochondrial diseases.
Center for Embryonic Cell and Gene Therapy/OHSU