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Human Fertilisation and Embryology Bill [HL]

My Lords, I am sure that many people will feel that I should not intervene, but I am one of many who must be finding it terribly difficult to understand this debate. What we are talking about now—with respect to the noble Lord, Lord Patel—is not what those who wish to carry out these experiments are going to do in the future, but what this phrase ““human admixed embryo”” means. I still do not understand what it means. Does it, for instance, cover an embryo that is 51 per cent human and 49 per cent animal? Or is it only an apt description of an embryo that is 80 per cent human and 20 per cent animal? I simply do not understand.