前胚胎 pre-embryo
植入前胚胎 preimplantation embryo
前胚乳 primary endosperm
前胚胎遗传学诊断 Preimplantation Genetic Diagnosis ; PGD
床前胚胎 pre-implantation embryo
着床前胚胎遗传学诊断 preimplantation genetic diagnosis
着床前胚胎的内细胞团 inner cell mass ; ICM
植入前胚胎的内细胞团 inner cell mass ; ICM
FGFR2阳性反应较均匀分布于卵母细胞和植入前胚的胞质。
However, FGFR2 were located uniformly in the cytoplasm of the oocytes and preimplantation embryos.
那些携带灭活基因的胚胚胎干细胞经分离出来后注入称作胚泡的胚前组织中。
Those ES cells carrying the inactivated gene can then be isolated and introduced (by injection) into a pre-embryonic structure called the blastocyst.
非常有趣的是，发育中的哺乳动物晶胚的心脏在分化为四腔室前，与斑马鱼的双腔心脏非常相似。
Intriguingly, before the heart of a developing mammalian embryo separates into four Chambers, it looks similar to the two-chambered zebrafish heart.
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