The simplist way to falsify evolution is to demonstrate via DNA analysis, that living things are not related by common descent. This could be done by the same methods used to prove that a child is not related to an alleged parent.
"The simplist way to falsify evolution is to demonstrate via DNA analysis, that living things are not related by common descent."
Except that evolutionists are very fast to switch things from homologous to analogous and back to justify any possible organization of the data they find. I'm not sure of what, specifically, would cause an evolutionist to think that organisms aren't related. All of the analogous-vs-homologous structures are determined by the presuppositions of evolution, and the determinations are based on which ones best support evolutionary theory.