幹細胞
幹細胞（英文：Stem Cell）係指未特化嘅細胞，即係遲啲可以變做唔同種類嘅細胞，所以可以用嚟修復身體。
以前，幹細胞係由胚胎度嚟，而由胚胎攞幹細胞就一定整爛胚胎，而家未必要整爛胚胎[未記出處或冇根據]，重用幹細胞複製胚胎[未記出處或冇根據]。
睇埋
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