Question

GVHD may occur

Select one:
a. after an allogeneic transplant of bone marrow or stem cells.
b. when newly transplanted cells are accepted by the recipient.
c. after an autologous transplant.
d. only if the donor is an identical twin.

Answer 1

GVHD may occur after an allogeneic transplant of bone marrow or stem cells when the transplanted tissue recognizes the recipient's tissues as foreign. It does not occur in other transplant scenarios.

Step-by-step explanation:

GVHD may occur after an allogeneic transplant of bone marrow or stem cells. This is because the transplanted tissue, which contains mature T cells, recognizes the recipient's tissues as foreign and attacks them. GVHD does not occur when newly transplanted cells are accepted by the recipient, after an autologous transplant, or if the donor is an identical twin.