What happens when dna reapirs itself

Replication errors and DNA damage are actually happening in the cells of our bodies all the time. ... Or, if the damage cannot be fixed, the cell will undergo programmed cell death (apoptosis) to avoid passing on the faulty DNA. Mutations happen, and get passed on to daughter cells, only when these mechanisms fail.

If you want the answer you need to post the figure above that it's talking about and you