Model of human embryo developed without sperm, eggs or a womb

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The new development has resulted in the first 'complete' embryo model for simulating all the important components that form in the early embryo.

by genetic engineering specialists at the University of Cambridge without the need of eggs or sperm.

"This is really a textbook image of a human day-14 embryo," Prof Jacob Hanna, from the Weizmann Institute of Science, the organization behind the new work, told theThe development is so advanced that it even generated hormones that caused a laboratory pregnancy test to become positive. This important period is largely responsible for miscarriages and birth abnormalities but is notoriously unexplained in science.They replaced sperm and eggs with naive stem cells and they reprogrammed them to acquire the ability to develop into any kind of bodily tissue.

 

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