My textbook (which is Biotechnology by David P. Clark) states, when talking about fate-mapping potential stem-cells:
"If the marked cell is not a stem cell, the marker will not be passed onto descendants since normal differentiated somatic cells do not divide by mitosis."
He then goes on to say:
"Most adult differentiated cells do not divide at all and are considered postmitotic."
So there are some differentiated somatic cells which divide, but apparently not by mitosis? So what is the technical term for their division?