论文部分内容阅读
“多莉”羊患肺病不治被赐予安乐死,克隆动物早衰论再度流传。然而,国内权威专家说:定论克隆动物早衰还为时过早。多莉死于早衰吗早在多莉羊诞生后不久,就有人提出“多莉羊难题”,即:克隆动物的年龄到底是应该从0岁开始计算,还是从被克隆动物的年龄开始累积计算,或者是从两者之间的某个年龄开始计算?就多莉羊而言,由于它是用一只6岁母羊的体细胞克隆的,那么,它的
“Dolly” sheep died of lung disease was given euthanasia, and premature aging of cloned animals continued to spread. However, domestic authoritative experts say it is premature to conclude that premature aging of cloned animals. Did Dolly die from premature aging? Not long after Dolly the Sheep was born, some people put forward the “Dolby Sheep Difficulties”, that is, whether the age of a cloned animal should be calculated from the age of 0 or whether it should be calculated from the age of the cloned animal. Or, starting from a certain age between the two, as far as Dolly Sheep is concerned, since it was cloned from the somatic cells of a 6-year-old ewe, then its