An isograft has less chance of rejection than a xenograft because
A. new blood vessels need not be formed in the isograft
B. the isograft is not composed of living tissue
C. the graft composition of the donor and recipient are identical in an isograft
D. there are no antigens in an isograft
E. it is an allograft
Answer: C. the graft composition of the donor and recipient are identical in an isograft
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