[osacial]

I remember reading some sci-fi story where gentleman had scrotum transplant and I had questions about that.

As it appears, now I know, that transplanted scrotum will produce semen with dna of previous owner - not recipient. Also, there are cases, where transplanted bone marrows are rewriting dna of receiver. So, brain is swappable in the end as well... sure.

Btw, your understanding of transplants is way too trivial - recipient body not always accept donor organs and people die because of it. Prosthetics are not transplants and they too can be rejected by body - and people who have them still "enjoy" side effects of not having proper arm or leg... the videos of happy sprinters with "better legs" do not convince me after I had been living with such people together, where higher body temperature is just one of those side effects of lost limb, not to mention dramatic impact on mind, where those battles about loss of limbs has to be battled every day.