目的观察胚胎干细胞(ES细胞)囊胚腔注射的方法构建嵌合体小鼠自发性肿瘤。
Objective to study the spontaneous tumors derived in chimeric mice resulting from injection of embryonic stem (es) cells into host blastocysts.
解冻后，33枚胚胎中有26枚(大多数胚胎含有2到10个细胞)发育到囊胚阶段，此时囊胚腔已经形成。
After thawing, 26 of the 33 embryos (most of which were composed of between two and ten cells) developed to blastocyst stage in which the blastocoele is formed.
解冻后，33枚胚胎中有26枚(大多数胚胎含有2到10个细胞)发育到囊胚阶段，此时囊胚腔已经形成。
After thawing, 26 of the 33 embryos (most of which were composed of between two and ten cells) developed to blastocyst stage in which the blastocoele is formed.
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