Further experiments are needed to both distinguish stem cells from more differentiated cells and compare cloning efficiencies of the different cell types. If proved correct, noninvasive ...

The cloning of embryos for generating stem cells ... after division begins (in mouse embryos), the proliferating cells form a structure called a blastocyst. It is 100 to 150 micrometers wide ...

Cloning is a biotechnological process that involves creating genetically identical copies of an organism or cell. In essence, a clone is an exact genetic replica of the original organism or cell, ...

If so, will those with the means use cloning to essentially cheat mortality? Could a form of the eugenics espoused by the Nazis now become reality if, say, a rogue government so chose? The cloning ...

Several states — like Arkansas and Michigan — have implemented explicit bans on all forms of human cloning.