For ten points, what cell type are government researchers currently forbidden to extract from embryos?
The best studied of the multipotent, or adult, form is found in the bone marrow.  A fertilized egg is, in a sense, a totipotent form while pluripotent human ones were first isolated in 1998.  These undifferentiated cells have the ability to reproduce and form multiple other types of cells.  For ten points, what cell type are government researchers currently forbidden to extract from embryos?
The best studied of the multipotent, or adult, form is found in the bone marrow.  
stem cells