Do stem cells derived from the umbilical cord vary from other types of stem cells?

Yes. Many experimental results provide evidence that stem cells derived from umbilical cord blood are more primitive, less developed and have a greater proliferation dynamic, compared to adult stem cells retrieved from bone marrow or peripheral blood. Freezing prevents cord blood stem cells from the process of ageing and protects them against defects which affect them in later stages of life. In general they are free from cancerous cells which form in later stages of cell life due to external environmental factors.