![Steerable-DNA-Spider-Developed-2 Steerable-DNA-Spider-Developed-2](http://lh5.ggpht.com/-ajCkLOTBeQY/TzRh2a8PWOI/AAAAAAAACr0/wEIlGzvpIHQ/Steerable-DNA-Spider-Developed-2_thumb%25255B1%25255D.jpg?imgmax=800)
Philosophy Wire by Spiros Kakos [2012-02-10]: Scientists pinpoint the important role of a mechanism (called NER) which DNA has in place so as to keep its structure intact instead of genetic “errors” arising [source: web news]. How come there is such a mechanism in a world where such errors are supposed to be the source of life’s evolution?
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