Which of the following statements concerning allografts is correct?

Question

Quizplus · Accepted Answer

Allografts are transplants between two genetically different individuals of the same species. They are associated with a high risk of rejection, which is mediated by the recipient's immune system. These transplants induce strong type IV hypersensitivity reactions and must be treated with immunosuppressive drugs to prevent rejection. Therefore, option B is correct because it states that allografts must be treated with immunosuppressive drugs to avoid rejection.  Option A is incorrect because allografts are associated with high rates of rejection, and option C is incorrect because not all allografts require complete destruction of the recipient's bone marrow. Option D is incorrect because while some allograft recipients may have significant genetic differences from the donor, it is still possible to transplant organs or tissues successfully. Option E is incorrect because allografts are not rare; in fact, they are the most common type of transplant.

Which of the Following Statements Concerning Allografts Is Correct