2) Isn't it true that sun exposure has an effect on mutations?
Well, yeah, the ones that cause skin cancer. If you have some evidence that it affects the rate of
germ-line mutations, then this would be an excellent time for you to produce the evidence.
4) If the y-chromosome evolved, is it possible that the base substitutions found therein are representative of millions of years of mutations since the y-chromosome's alleged introduction over 200 million years ago? ie doesn't the small number of mutations found put doubt on evolution, rather than the large number of mutations disproving creation?
I didn't follow that at all, could you clarify your point? Thanks.