A-LevelBiologyImmunity9700/12 · May/June 2018 · Q401 Mark
When an organ is transplanted from one person to another, rejection of the non-self organ must be avoided. At the same time, the immune system of the recipient must be maintained to prevent death from infections. What prevents rejection of the transplanted organ?
Acontinued activity of B-lymphocytes
Bnatural active immunity
Cnatural passive immunity
Dsuppression of T-lymphocyte activity
✓ Correct answer
D: suppression of T-lymphocyte activity
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