In common with embryonic stem cells, adult stem cells have the ability to differentiate into more than one cell type, but unlike the former they are often restricted to certain types or "lineages".
与胚胎干细胞一样，成体干细胞具有分化成多于一种细胞类型的能力，但是与前者不同，它们通常局限于某些类型或“谱系”。