Developmental potency of primitive and embryonic ectoderm cells from 4.50-day to 6.25-day post-coitum (p.c.) mouse embry......

<正> 用免疫手术法分离小鼠胚泡的内细胞团,然后通过显微操作把内细胞团注入另一品系小鼠的胚泡腔内,经体外培养和移植到受体,生下......