A recent breakthrough in the race to create ‘synthetic’ embryos has sparked criticism. But the findings could be valuable in understanding miscarriages and genetic disorders
The news on 14 June that scientists had made “synthetic human embryos” caused widespread surprise and alarm. Sounds scary, right? Perhaps even, as an editorial in the Guardian suggested, like “playing God” and paving the way towards a dystopian “brave new world”.
The reality is different. For one thing, calling these “synthetic embryos” is rather misleading, even prejudicial – most scientists prefer the term “embryo models”, and they are made from ordinary human cells. And they are not new – the earliest ones were made years ago, although the scientists behind the latest work say they have been able to grow them for longer than before. What’s more, these embryo models are not being created out of Frankenstein-like hubris just to see if it’s possible, but could offer valuable new insights into embryology, disease and pregnancy. None has the potential to grow into a human being, nor is there any reason why scientists would want them to.
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