35. Is embryonic stem cell research ethical? (proposed — Bill)
Embryonic stem cell research may offer revolutionary medical treatments because the embryonic stem cell is the only cell we know of that can differentiate itself into any other type of cell, and can replicate itself indefinitely. However, embryonic stem cell research is considered controversial because some consider that a blastocyst (a fertilized egg), from which embryonic stem cells are obtained, is a human being.