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Lab-grown synthetic human embryos lead to calls for regulation

Lab-grown human embryo models spark calls for regulation

Scientists have used stem cells to create structures that resemble human embryos in the lab, in a first that has prompted calls for stricter regulation in the rapidly advancing field.The labs used different techniques to encourage human embryonic stem cells, which can become any type of cell, to self-assemble into a structure that resembles an embryo without needing sperm, an egg or fertilisation.

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