Hmmm....Pdragon, I had a thought:<br/><br/>Due to Alex/Alexis' super regeneration and very unstable DNA, what would you say if their bodies' parts couldn't be swapped with others?  After all, when they swap sexes, their body undergoes drastic physical changes.  I don't know how that would work if their leg was swapped with another person's and suddenly Alex becomes the much taller Alexis.  >.>