In plants, they are usually found in the apical meristem, and they are grown on a layer of feeder cells in tissue engineering labs.
In the intestines, they are generated in the crypts, and they are affected by beta-catenin. In the blood, they come in myeloid and lymphoid types and are capable of forming colonies. In plants, they are usually found in the apical meristem, and they are grown on a layer of feeder cells in tissue engineering labs. Other prominent sources of them include the bone marrow and the umbilical vein, but those gathered from embryos are the most controversial. For 10 points, name these undifferentiated cells that can divide almost indefinitely.
In the intestines, they are generated in the crypts, and they are affected by beta-catenin.
stem cells [accept stem cells after "cells"]