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最佳答案：1在复制时 DNA聚合酶的外切活性确保子链与母链的一致性此外就是碱基的严格互补配对性质还有体内的修复机制如错配修复 切除修复等也确保信息的保真性在转录时RNA聚
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最佳答案：A group of genetically identical cells or organisms derived from a single cell o
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最佳答案：1Genetic determinants of our personality, the so-called Jiangshan easy to play,
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最佳答案：Aquatic germ plasm resources reserve, it is to point to to protect germ plasmres
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最佳答案：1,gene from any kind of organism can be move into any other unrelated receptor c