I agree, though there are lotsof sequenses I agree, though there are lots of sequences in most DNA strands that were thought to be use less (called ‘Introns’, as opposed to the segments known to be directly useful in coding proteins and such which are called ‘exons’) possibly being left over codes that were once part of an enxon, or the ruminants of ERVs (retroviruses that invaded our system millions of years ago and got stuck in out genome. Greg Bear’s Darwins Radio makes good use of this idea)
Anyway, the statement about the DNA of chimps and Humans being the same save for the Introns is either someone probably misunderstanding the original concept (I would not be surprised having read Universe in a Nutshell by Prof Hawkins, my head still cant get it self to understand what the hell P-Branes are)
There has to be some significant differences in the DNA that codes for us as if not we would be exactly the same. It the same as making the claim that if you took two hummers and filled one with trash then making the claim that the one with out the trash is a ford Tourus.