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It’s time to relax the rules on growing human embryos in the lab
Researchers can only study human embryos up to 14 days past fertilisation, but new techniques can go beyond that – a change in the law would benefit all of us
WHEN it comes to studying our earliest existence, how far are we willing to go? Growing human embryos in the lab beyond the seventh day after fertilisation – the moment when embryos normally implant in the wall of the uterus – has been a long-standing challenge for biologists, but the latest research is allowing us to extend past that.
Earlier this year, a team led by…