[ojibway]

If you wanted to genetically alter the human race, all you would have to do is remove the ova from the females and implant the required genetic change. Place an enmity between the seed as stated in the bible. The ova within females are produced before birth(I believe) and stored in the ovaries unto puberty, where they are then released into the fallopian tubes for fertilization, monthly. There is a limited supply of ova, whereas sperm seems to be unlimited, and produced as required. All the creation myths point to such an intervention of our species. In the beginning of our creation it would be likely that humans where limited geographically and in population. Given this scenario collection of females for genetic manipulation would not be difficult. If the ovaries where completely removed and the ova extracted and artificially inseminated and then implanted manually. The original humans would become extinct and the newly manipulated ovas would become the surviving race.