I don’t think you mean ALL the storie of Genesis, just the big ones that everyone remembers from Sunday School.
I’d be very interested in links to Babylonian or Egyptian precusors to the stories of Abraham, Jacob or Joseph, for instance.
There is, of course, absolutely no precursor to the story of Abraham—it completely eviscerates the legitimacy of polytheism, which was essential to the political relations of the early civilisations around the Fertile Crescent.
We know an Egyptian came up with it ~ and the Egyptians later did their darndest to hide the idea from us.
Speaking of the “big stories” the Hindus have their own equally old version of Noah. However, it was modified later on by someone interested in inserting the Messiah into the middle (manifest in his persona as the Great Cobra with 8 heads).