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The nameDNA
the genetic information on which organisms depend for survival and reproduction, so maintaining the integrity of DNA molecules is critical for cells. Factors inside the outside environment and organisms often lead to damage or alteration of DNA molecules, and unlike RNA and
proteins
which can be synthesized in large quantities in cells, there is generally only one dna in a proton nucleus cell, and only one pair of DNA in the somatic cells, and if DNA damage or changes in genetic information cannot be corrected, the body cells may affect their function or survival, and reproductive cells may affect offspring. So the ability of biological cells to repair DNA damage during evolution is very important, and it is also where biological stability can be maintained. The only biological molecules that can be repaired in cells are DNA, reflecting the importance of DNA to life. On the other hand, in biological evolution,
meditation
is a phenomenon that is relative to genetic unity and prevalence, and not all changes in DNA molecules can be restored to the same, which is why organisms have variation and evolution.
