United Kingdom Approves 3-Person Babies

LONDON (AP) — Britain has become the first country in the world to allow the creation of human embryos from the DNA of three people, a technique intended to help mothers avoid passing on genetically degenerative diseases to their babies.

The bill granting the controversial techniques was passed Tuesday by the House of Lords, after being approved earlier this month by the House of Commons.

The methods involve altering an egg or embryo before it is transferred into a woman which had previously been forbidden by British law. They are intended to avoid passing on defects in the mother’s mitochondria, which can result in diseases including muscular dystrophy, heart, kidney, liver failure and severe muscle weakness.

The methods would likely only be used in about a dozen British women every year, who have faulty mitochondria, the energy-producing structures outside a cell’s nucleus. To fix that, scientists remove the nucleus DNA from the egg of a prospective mother and insert it into a donor egg from which the donor DNA has been removed. That can happen before or after fertilization.

The resulting embryo would end up with the nucleus DNA from its parents but the mitochondrial DNA from a donor. The DNA from the —> Read More Here


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