Jovaro,
You state that the son of adam and eve would have been genetically the same right, just as any of his brothers, that is what you are saying. That the sons and daughters would be genetically the same.
If that is so, why, do brothers born these days differ so much?
They have a different genetic makeup than their brothers or parents. In other words, they evolved.
Plus changes in people happen quite fast believe me.
If you look at the middle east people with their brown skin who came and live in the Netherlands, the 3rd generation of them has significantly whiter skin than the rest. In other words, they mutated. And that is just in 3 generations, in other words, within 60 years.
We humans, are the most adaptable species on this world I would say. We survive everywhere. Our bodies adjust perfectly to the surroundings within a couple of generations(in 10 generations a people can have changed)
Michael