多利是277个卵细胞与乳腺细胞融合而成的唯一一只羊羔。
Dolly was the only lamb born from 277 fusions of oocytes with udder cells.
然而就像兰蒂克女士所述，很少有门外汉知道早在20世纪60年代就有科学家首次将不同物种的细胞融合在一起。
Yet few laymen realise that scientists first fused cells from different species as far back as the 1960s, as Ms Landecker describes.
当哺乳动物捕获这个基因，利用它在胎盘产生一层融合细胞，通过这层细胞母亲能够将营养物质输送给她们的胚胎。
When mammals captured the gene, they used it in the placenta to create a layer of fused cells through which mothers can send nutrients to their embryos.
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