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This means the cells that are red here have all the information to form the major cell types of the inner ear.
这就是说，用红色标示的细胞具有构成,内耳主体细胞类型的全部信息。
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That's just an example of a cell that in its very mature or differentiated form is quite different from other cells inside the body.
以上就是一个,分化成熟的细胞,区别于体内其它细胞的范例
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It separates those duplicated chromosomes to two sides of the cell, physically separates them, and the cell itself pinches off to form two new cells.
双倍化的染色体,被分别拉向细胞的两边,物理性的分离了,细胞本身中央凹陷形成两个新细胞
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The kinds of proteins that sit on a cell surface and form adhesion junctions with neighboring cells, that's one class of cells on the surface.
这些蛋白位于细胞表面,和相邻的细胞建立粘附链接,这是细胞的一个种类
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We talked about the cell membrane, the plasma membrane separating the inside form the outside.
我们讲过细胞膜,这种质膜将细胞内外区分开
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It's no longer capable of self-renewal to form another stem cell.
不再能自我更新,从而生成另一个干细胞了
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It's a gene that allows you to deliver a drug that's not active but the gene causes that active - that inactive drug to be converted into an active form that kills the cell.
这一方法利用该基因激活,另一种已经导入细胞的非活性药物,来杀死肿瘤细胞
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These junctions, these red dots here are actually made up of proteins, some are synthesized by one cell, some are synthesized by each other, and they lock together to form a very tight barrier, to form a tight junction between the two cells.
这些红点表示细胞连接,实际上是由蛋白质构成的,有些是由一个细胞单独生成的,有些是由两个细胞共同生成,使这两个细胞紧锁在一起形成紧密的屏障,并在两细胞间形成紧密连接
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In terms of function they're very important because this stem cell which is produced goes back into the population of stem cells and is able to repeat this process to form new committed progenitor cells and to form new stem cells.
但就功能而言这些干细胞则至关重要,因为这类分裂产生的子细胞,依然是干细胞,可以再次重复上述步骤,生成新的定向祖细胞,和新的干细胞
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Now the challenge is not just to get the DNA that encodes a gene into a cell, the challenge is to get it into the cell in a form where the cell can use it, can express it and make proteins from it.
现在的问题不仅在于,要将编码基因的DNA转进细胞,还要让它进入细胞之后,能够为细胞所用,能够表达并合成蛋白质
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