Perhaps
@robocop (actually) needs to learn that there are more ways for DNA to mutate than merely through point mutations. Even though he has been describing one major change, that of fusion, he does not seem to understand what that entails.
This article may help, it is a starting point on mutations and what they do:
Types of mutations
One of the mutations mentioned in that article are insertions. Insertions occur when a string of DNA is added to a genome. One mutation that belongs in the insertion category are gene duplications. Sometimes entire genes are copied and inserted back into the genome. This is a very important mutation that allows for "new information". Creationists will sometimes point at a key gene, one which would result in death to an organism if it was mutated. And ask how can that gene mutate into another one without killing the organisms involved? The answer is often gene duplication. That gene is copied and reentered into the genome. That allows one copy to mutate and the other to continue doing the old job:
Gene duplication - Wikipedia