Back to profile Contact person for... - dr.ir. R (Renze) Heidstra Pages Stem cell specification and regeneration (Heidstra Group) A central question in biology is what determines the fate of a cell, tissue or even organ. Fate decisions taking place during embryogenesis are... Heidstra Group - Stem cell specification and regeneration A central question in biology is what determines the fate of a cell, tissue or even organ. Fate decisions taking place during embryogenesis are...