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DNA 聚合酶的作用在于形成何种键
DNA 聚合酶在 DNA 复制过程中发挥着关键作用,其主要形成磷酸二酯键,以确保遗传信息的准确传递。同时,这一过程还涉及到多种相关的化学反应和酶的协同作用。 1. 磷酸二酯键的形成机制:DNA 聚合酶通过催化脱氧核苷酸之间的反应,将一个脱氧核苷酸的 5'磷酸基团与另一个脱氧核苷酸的 3'羟基相连,从而形成磷酸二酯键。这是 DNA 链延长的基础。 2. 对 ...
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