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How cells 'back up' DNA replication to survive severe damage

How cells 'back up' DNA replication to survive severe damage
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Every time a cell divides, it must copy its DNA with extraordinary precision. But this process is constantly challenged by DNA damage. Among the most dangerous lesions are DNA interstrand crosslinks (ICLs), which chemically bind the two strands of DNA together and block the machinery responsible for copying the genome.

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