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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  for all of the technology that is built on DNA.
  对于所有以DNA为基础的技术很重要
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  It has to do with the nature of this complementary
  这些特性能从根本上解释
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  binding between double stranded DNA
  为何DNA双链的碱基能互补配对
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  and the fidelity of this base
  以及在形成稳定的DNA分子结构时
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  pair matching in forming stable DNA molecules.
  碱基互补配对为何具有一致性
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  I told you that the fidelity is very high.
  互补配对的一致性是非常高的
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  What does that mean?
  这表示什么呢
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  That only strands that have
  这表示只有两条链的碱基对
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  this exact complement can form double stranded DNA.
  完全互补才能形成DNA双链
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  Because of that you can do the following experiment,
  我们可以做一个实验
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  and it's a simple experiment, it's simple to understand,
  这是一个非常简单容易理解的实验
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  but the concept is very important
  但是这个实验验证的概念非常重要