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What two DNA repair systems are used by the immune system, and why?

What two DNA repair systems are used by the immune system, and why?

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The two DNA repair system by immune system include global genomic repair (GGR) and transcription-coupled repair (TCR). They help to prevent mutagenesis, carcinogenesis and cell lethality. GGR helps to repair the lesions formed in the DNA of the genome on the other hand TCR is r esponsible only for the transcribed DNA strand in expressed genes that has any faults. These mechanism prevents mutations and genomic instability because this DNA damage could result in the development of a variety of cancers.

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