The ensuing gene expression profile in the cleavage-stage embryo establishes totipotency and is required for further development.

随后卵裂时期胚胎的基因表达模式将建立一种全能性，这对进一步发育是必需的。

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Nearly a century ago, biologists found that if they separated an invertebrate animal embryo into two parts at an early stage of its life, it would survive and develop as two normal embryos.

近一个世纪前，生物学家发现，如果他们在无脊椎动物胚胎生命的早期阶段将其分成两部分，它会存活下来并发育成两个正常的胚胎。

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Your baby has left the embryo stage and is now a fetus.

婴儿现在已经脱离了胚胎阶段进入了胎儿期。

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These are cells that I that were obtained either from a more developed embryo, past the blastocyst stage.

这些细胞是我从,发育的更成熟的一些胚胎中提取的,这些胚胎已经过了囊胚期了

耶鲁公开课 - 生物医学工程探索课程节选

This inner cell mass develops into the embryo, which this here shown at a later stage is beginning to be clear that it's becoming an organism that looks like us.

内细胞群发育成为胎儿,这张图这是一个相对晚期的阶段,能越来越清晰地观察到,这团东西开始有个人形了

耶鲁公开课 - 生物医学工程探索课程节选

It is usually taken from an embryo that is in the development stage.

CNN: Dr. Sanjay Gupta: Understanding stem cell research