Which type of sterm cell is most able to produce a new individual?

The type of stem cell most capable of producing a new individual is the totipotent stem cell. Totipotent stem cells can give rise to all cell types in an organism, including both the embryonic and extraembryonic tissues, such as the placenta. This ability allows them to develop into a complete, viable organism. In humans, totipotent cells are present only in the earliest stages of embryonic development, specifically in the first few cell divisions after fertilization.