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A member asked:
Etiology of dna mutations?
A doctor has provided 1 answer
Replication error: Most changes in dna come from errors in the duplication of the dna. But changes can occur in the structure from radiation and some chemicals especially those used in chemotherapy. Most mutations are harmless, some are tracked down by your normal reparative mechanism but a few can cause trouble including cancer.
Answered 5/11/2013
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