How do they know how to create daughter cells that shift into various parts of the organism. Same DNA in all, different outcomes in differnt tissues and organs:-"The findings suggest that the information on the X and Y chromosomes that makes this division possible is primed during gametogenesis—the process of creating ovum or sperm cells—in the parents." (my bold)- Read more at: http://phys.org/news/2013-05-clues-stem-cells-kinds.html#jCp