搜索 - 科创

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目前人们根据鱼类对光、声以及特定的食物具有较强反应的原理，发明了光诱捕鱼和声诱捕鱼等多种先进的诱捕技术。光诱捕鱼是根据鱼类的趋光性，用光将分散的鱼诱集起来，然后借助其它渔具达到捕捞的目的。

为了确定并解释为什么感官不合乎自然界的这些定律，我们能从这种事态追溯到某种最重要的原理吗？　　　　这是物理学家能够完全搞清楚的一个问题。对所有提问的回答都是肯定的。　　　　5.

由于DNA半保留复制是严格地按照碱基配对原理进行的，因此新合成的子代DNA分子忠实地保存了亲代DNA分子所携带的全部遗传信息。通过这样的复制，基因便能够代代相传，准确地保留下去。

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