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British MPs Approve 3-Parent Babies

An anonymous reader writes: A vote of 382-128 in the UK's House of Commons gave approval for a procedure that allows the creation of babies using DNA from three parents. If the measure passes the House of Lords and gets licensed by the fertility regulator, the UK would be the first country to allow such genetic engineering. The medical procedure was designed to help conception when genetic diseases could be passed through mitochondrial DNA. A child inherits mitochondria only from its mother, and these mitochondria have their own DNA, which doesn't affect things like the child's appearance.

The purpose of the procedure is to replace the mother's mitochondria, and that can happen in two different ways. In one method, doctors take eggs from the mother and from a donor, removing the nucleus of both. The mother's nucleus is then implanted in the donor's egg, which can then be fertilized by the father's sperm. The other method is similar, but both eggs are fertilized before the nucleus swap takes place.

There has been lively debate about this issue, with critics raising ethical concerns and questioning the procedure's success rate. They also bring up the slippery slope argument that this will lead to further genetic modification of children. Proponents point out that less than 0.1% of the child's DNA will come from the donor, and it won't affect anything other than the child's health.

2 of 199 comments (clear)

  1. Re:"...other than the child's health" by ronan7853 · · Score: 5, Insightful

    child custody in a divorce? i don't know. might even be some BAD health things.

    Do you think the donors of kidneys or stem cells should also have custody rights over their recipients? If not, why should the donors of mitochondria be treated any differently?

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  2. Re:"...other than the child's health" by quenda · · Score: 5, Insightful

    DNA is usually not a consideration in custody decisions.

    I disagree. Possession of a second X chromosome tends to be a big advantage.