What is one characteristic of syngeneic transplants?

Syngeneic transplants are characterized by the use of cells that come from an identical twin. This type of transplant is advantageous because the donor and recipient share the same genetic makeup, minimizing the risk of transplant rejection. The compatibility of the cells makes them more likely to function effectively in the recipient’s body without triggering an immune response. This characteristic of using genetically identical cells is a key feature that differentiates syngeneic transplants from other types, such as allogeneic transplants, which involve cells from genetically different individuals.

The other options represent different types of transplants or donor sources. Cells from unrelated donors refer to allogeneic transplants, where the donor and recipient are not genetically identical, while cells from the recipient's own body denote autologous transplants. Lastly, cells from umbilical cord blood are typically related to cord blood transplants, which are also a separate category. Each of these types has its own implications for compatibility and potential for graft-versus-host disease, further emphasizing why syngeneic transplants, with their use of identical twins, stand out.