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Guy gets bone marrow transplant and now all of his DNA is actually that of the donor.

Even his semen.

The Law & Order episode is already being written, I'm sure...

Leisher wrote: Guy gets bone marrow transplant and now all of his DNA is actually that of the donor.

Even his semen.

The Law & Order episode is already being written, I'm sure...

Well, the semen at least has an explanation. Dude had a vasectomy, so his sperms aren't there.