A stem cell is:
A. a specialized cell that can divided limitlessly
B. a specialized cell that can divide limitlessly but can't differentiate
C. an unspecialized cell that can't divide limitlessly nor differentiate into specialized cells
D. an unspecialized cell that can divide limitlessly and differentiate into specialized cells
Stem cells differ from other kinds of cells in the body. All stem cells—regardless of their source—have three general properties: they are capable of dividing and renewing themselves for long periods; they are unspecialized; and they can give rise to specialized cell types. Stem cells are unspecialized.
