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Why iscell's ability to repair
damage to
DNA is critical to cell survival?2. What factors in the body cause changes in DNA structure? What can cells do to maintain the stability of DNA structures?3. What environmental factors are easy to damage DNA in organisms? What are the ways and types of damage? What are the effects of the results on biological cells?4. What are the ways in which biological cells are known to repair DNA damage? What will be the result of the repair reaction?(Chen Sumin)