ye, i kinda agree with ed84c,
its wrong to kill an embryo when u can use bone marrow, just coz its cheaper
but at the same time, the embryo prob cant feel its dying or nothing, it prob can feel at all, it wont know its about to die, and the mother, will presumably have no problem with it either, so its not all so bad is it?
its not the like the embryo is a living feeling person who can talk, it wont know whats going on, its just one sec it will b alive, then next sec it will b dead, it wont know the difference.