NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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What describes an isograft transplant?

  1. Between twins

  2. From a parent to a child

  3. Between non-relatives

  4. Between different species

The correct answer is: Between twins

An isograft transplant refers to a transplantation between identical twins. In this case, the twins share the same genetic makeup, leading to a reduced risk of rejection due to histocompatibility. Therefore, the correct answer is A. Options B, C, and D are incorrect: B. From a parent to a child - This type of transplant is known as a parent-to-child transplant or a living-related transplant, not an isograft. C. Between non-relatives - Transplants between non-relatives are referred to as allografts, not isografts. D. Between different species - Transplants between different species are termed xenografts, not isografts.