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两头含人类ＤＮＡ的“克隆牛”，于今年元月在得克萨斯州诞生，分别取名为乔治和查利。这标志着人类向实现药用牛奶大规模生产又迈进了一步。培育这两头牛的方法是，首先将人体的ＤＮＡ转移到实验室培养的牛胚胎细胞中，然后利用电能将精心挑选出来的带有人类ＤＮＡ的细胞...
Two “cloned cattle” containing human DNA were first born in Texas in January of this year, and were named George and Charlie respectively. This marks a further step towards the realization of mass production of medicated milk. The way to breed these two cows is to first transfer the DNA of the human body into lab-cultured bovine embryonic cells and then use the electric energy to carefully select the cells with human DNA ...