Repair, DNA

Repair, DNA
The body has a series of special enzymes that repair mutations (changes) in the DNA and restore the DNA to its original state. The DNA in genes is constantly mutating and being repaired. This repair process is controlled by special genes. A mutation in a DNA repair gene can cripple the repair process and cause a cascade of unrepaired mutations in the genome that lead to cancer.

Medical dictionary. 2011.

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