来自《耶鲁大学开放课程：生物医学工程探索 第3集 第3集》

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  They're making that because you need this protein insulin,
  它们产生胰岛素蛋白是因为你需要它
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  it's a hormone,
  胰岛素是一种激素
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  and it's important for sugar metabolism in your body.
  它在糖代谢中起着非常重要的作用
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  Those cells in your pancreas are making insulin.
  胰腺里的细胞产生胰岛素
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  That means the gene that encodes insulin,
  这意味着基因编码了胰岛素
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  the sequence of base pairs that encode insulin.
  碱基序列编码了胰岛素
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  I'll talk about what that means,
  一会儿
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  encoding insulin means in a minute,
  我将会讨论基因编码胰岛素的意义
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  but there's a gene that tells your body
  所有细胞都含有相同的胰岛素基因
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  what insulin looks like and that gets transcribed
  它决定胰岛素的结构以及如何被转录
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  but only in those cells that make insulin.
  但是只有胰腺细胞才能产生胰岛素
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  It gets converted into a protein, insulin,
  只有在能表达