This post--ultraconserved-DNA describes an interesting subset of DNA research. There are sections of human DNA that are identical ("ultra-conserved") with a wide spectrum of animals (e.g. mice, rats). Scientists speculate that these sections are mission critical, and that any mutation in these areas would kill the host or the offspring and hence not pass on the mutation. The first pass attempt to verify this hypothesis failed miserably--mice with these sections deleted appear to do just fine.
I'm sure we will eventually get a good scientific explanation why this DNA is "ultra-conserved".
My thought experiment -- what if scientists discovered that encoded in the DNA of these sections were Hebrew passages from the book of Genesis that matched our best reconstructions of the original text. How would you incorporate that scientific discovery (after verification of course) into your belief system?