The enzymes that replicate DNA when a cell divides are not 100% efficient, and a small amount of DNA gets lost from the end of each strand during replication.

复制DNA的酶在细胞分裂时不是100%有效，少量dna在复制过程中从每一串的端部丢失。

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DNA mismatch repair system could recognize and repair mistakes in process of DNA replication, guard stability and integrality of genome.

DNA错配修复系统可以识别并纠正DNA复制过程中出现的错误，保证基因组的稳定性和完整性。

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This research will facilitate to find new DNA-binding protein, and it is important to reveal the molecular mechanisms of DNA replication and transcription and DNA repair and recombination.

该研究对于寻找新的DNA结合蛋白，研究生物体中遗传信息的复制、转录、修复和重组的分子生物学机制具有重要意义。

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That's synthesis and that has to happen in order for cells to replicate and cell replication is happening in your body all the time.

这个DNA合成过程是,细胞复制中不可或缺的部分,细胞复制时刻不停的在你身体里进行着

耶鲁公开课 - 生物医学工程探索课程节选

What's shown here is what's called a replication fork in DNA that's undergoing synthesis.

这里展示的是在DNA合成过程中,形成的DNA复制叉

耶鲁公开课 - 生物医学工程探索课程节选

The result of this process if this replication went down the whole length of the DNA would be to form two identical, double stranded DNA molecules.

如果复制过程在整条链上持续进行的话,将生成两条完全一样的,双链DNA分子

耶鲁公开课 - 生物医学工程探索课程节选

But, what about DNA polymerase and DNA replication?

FORBES: ENCODE Papers Get A Fisking

Cancers are driven to make copies of themselves, however, if cancerous cells run out of the building blocks of their DNA they develop "DNA replication stress".

BBC: Thriving cancer's 'chaos' explained

The research team identified three genes often lost in diverse bowel cancer cells, which were critical for the cancer suffering from DNA replication stress.

BBC: Thriving cancer's 'chaos' explained