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Cloning without embryos

Cloning without embryos

作者:邝庥诒  时间:2019-03-07 02:06:02  人气:

By Andy Coghlan IT’S the acceptable face of human cloning: creating new cells and tissues to replace those lost to disease. But even the prospect of this “therapeutic cloning” has a troubling side. Every time a patient is treated, a cloned human embryo would be destroyed—a tiny ball of cells admittedly, but a potential human life nonetheless. Now a company linked to the team that created Dolly the sheep plans to overcome this ethical obstacle by removing the embryo step. It claims already to have promising results. And the technique wouldn’t need to use human egg cells,