Perhaps as a potential of the universe. But in order for it to be manifest in the physical, it must, well, become manifest in the physical.
The evidence we have from genetics and historical evidence from breeding populations suggests that it is. Despite your unsubstantiated protests.
That was Lamarckian evolution. We have covered this many times Dave, yet you continue to resurrect this misrepresentation of the modern synthesis. You need to learn to be more precise in these matters and differentiate the various ideas and nuances of science.
The evidence we have suggests that mutation rates can be increased by environmental factors. Again as I have explained the rate (quantity) of genetic variation is not random, though the characteristics (quality) of these genetic variations do seem to be random.
Various factors. You might want to consult a geneticist if you are sincerely interested. One of my good friends is a world renowned geneticist (PHD). I can ask him if he would help you get a better understanding of the details of this.
Again there are various factors involved. Would you like a detailed breakdown? Would it help your understanding? Would you let it?
Yes, everything seems to have a cause. Even things that seem "random" have a cause. But the vast amount of variables and/or unknowns makes an accurate prediction highly unlikely if not impossible, so we label it "random".
Are you trying to insert your "scientific" idea of original sin here (which is from your interpretation of Genesis)?