diploidsetest sugurakkude eellastest eraldatud embrüonaalsed pluripotentsed tüvirakud, mis ei ole veel spermideks või munarakkudeks diferentseerunud, embryonic pluripotent stem cells derived from the progenitors of diploid germ cells that have not yet differentiated into sperm or egg cells. If separated from the embryo and grown in culture, they stay diploid and could give rise to any type of cells in an organism.