A 42-yr man has been diagnosed with CRF. His identical twin brother has the same HLA alleles at all loci, and volunteers to donate a kidney to his brother. Which of the following terms correctly describes the proposed organ transplant?
a. Graft between genetically identical twins is called as syngeneic or isograft. Because identical twins arise from a single zygote, both the twins will have identical MHC molecules.
b. Therefore, immunosuppressive therapy is not required in the recipient of such a graft, as it will not be rejected.
c. Other grafts: autograft: from one part of the body to the other part in the same individual; allograft: from one individual to another individual of same species; xenograft: between different species.