evolution deals with how one living organism changes over time into another living organism
the initial origins are another question entirely that, even though the answer is highly relevant to evolution, have no bearing on the accuracy of evolution. One can believe in a supernatural origin of life and in the most materialistic interpretations of evolution. Two entirely different theories.
However, if it was found that DNA replication or many of the things we assume are important to early life were not present in early life forms, parts of evolutionary theory would need to be revised (no model or theory of the origins of life goes against evolution, at this point).
Also, on a cool note, more understanding about the arrangement of DNA molecules is obtained every day:
http://www.livescience.com/health/080124-dna-telepathy.html
livescience has a sort of recap of this article:
http://pubs.acs.org/cgi-bin/abstract.cgi/jpcbfk/2008/112/i04/abs/jp7112297.html