How didd D could DNA repair have evolved?

Jeffrey Hall Jennings jhj4 at namaste.cc.columbia.edu
Wed Sep 15 15:34:58 EST 1993

1st, as the subject alludes, 	I don't know what the command is to delete a character in EMAC (the default editor that appears when one uses rn.

Anyway, my question is regarding DNA repair enymes that prevent uncontrolled growth of a cell by changing the bases to the original base.  How could these
enzymes have evolved?  Wouldn't the cell that has mutated to have uncontroled 
growth be selected for?  I can't think of a scenrio where these repair enzymes
could be selected for.

systems that

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