（）为了多获得这种基因改造过的胚胎,可以采用的方法,当处理对象为囊胚时操作要点是 ___________________________________

答案：（1）造血干细胞伦理学（2）体外受精胚胎移植免疫排斥几乎没有（3）否（或不会）（4）胚胎分割...

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