There are a lot of assumptions in there. For instance, those methylation marks may in fact lead to changes in the DNA. Epigenetic silencing is possibly associat

There are a lot of assumptions in there. For instance, those methylation marks may in fact lead to changes in the DNA. Epigenetic silencing is possibly associated with gene duplication: http://link.springer.com/article/10.1007/s00239-002-2446-6 http://link.springer.com/article/10.1007/s00239-002-2446-6