3-Parent Embryo

3 person embryo 111
3 is better than 2, right?
If you think cloning humans is controversial, science is about to throw another curve ball: 3-parent embryos.

Researchers have produced human embryos containing DNA from three people, a biotechnological proof-of-principle with profound medical and ethical implications.

To accomplish this, chromosomes were taken from one zygote — the single cell formed when sperm and egg fuse — and put into a zygote stripped of its original chromosomes, but left with its original mitochondria, which provide each human cell with energy…

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