It has to do with http://en.wikipedia.org/wiki/Cell_potency#Totipotency http://en.wikipedia.org/wiki/Cell_potency#Totipotency There are a few good intro lectur

It has to do with http://en.wikipedia.org/wiki/Cell_potency#Totipotency http://en.wikipedia.org/wiki/Cell_potency#Totipotency There are a few good intro lectures about how stem cells work at http://www.youtube.com/results?search_query=stem+cell+lecture http://www.youtube.com/results?search_query=stem+cell+lectur... (please ignore the Samsung Galaxy S® III ads -- they are not totipotent in the least).