The only important thing to realize about that is that these differences start to occur very early in development.
唯一需要引起重视的是,这些差异发生在,发育阶段的早期
Well, it really happens throughout development and it happens from the first stages.
这一过程不仅贯穿整个发育阶段,并且于胚胎发育伊始就存在
One experiment a post doc of mine did was he took these cells and injected them back in to the ear into the otic vesicle at the stage where we think the cells are in development.
我的一位博士后做了一个实验,他提取出这些细胞,然后注射到,处于发育阶段的,耳部泡囊中。
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
During development now this blastocyst has become implanted.
现在囊胚已经到了发育过程中的着床阶段
We learn from development.
我们不妨从的发育阶段入手。
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