The chromosomes would be be interesting. I figure that it would have identical or very similar DNA to the stem source making his parents equal to the parents of the stem cell and maybe could be biologically the same as a twin of the stem cell donor. Keep in mind that sometimes siamese twins are born naturally—or two head mouse or turtle. So there is a development starting off with living cells having parents DNA whether resulting from conception naturally, or artificially —or by this process. This stem cell method of producing an embryo exploits the biological process of the development of a living organism synthetically.
But the parents of the embryo are the same parents as the stem cell donor’s parents—seems.