Since the clone sheep "Dolly" was born, the arguments about nuclear transplantation were never stopped.

自从核移植产生第一头克隆羊多莉以来，对其应用一直存在争议。

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Instead, they want to use somatic cell nuclear transfer, the same process used to clone Dolly the sheep in 1997, to create embryonic stem cells.

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Dolly was the first clone, or copy, of an existing animal.

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Right now, scientists can only use stem cells to study particular diseases by creating embryos through the same process used to clone animals like Dolly the sheep.

FORBES: Stem Cell Science Heats Up