Transplants or grafts of brain tissue in animals
A) have not been attempted in humans because of ethical restrictions.
B) have been attempted but without any success in any animal so far.
C) created animals that were dangerously aggressive.
D) have been able to partially repair cut spinal cords in rats.

Question

Quizplus · Accepted Answer

Transplants or grafts of brain tissue have been attempted in animals and have been able to partially repair cut spinal cords in rats. However, they have not been attempted in humans because of ethical restrictions. There is no evidence to suggest that these transplants created dangerously aggressive animals.

Transplants or Grafts of Brain Tissue in Animals