This brings up the question that has been lingering in the back of my mind about a few episodes ago when someone said something about juliet's success they said that she had been able to get a "male rat pregnant." I always wondered what that had to do with getting a cancer patient pregnant. Why didn't she work on getting a rat with ovarian cancer pregnant or something like that. But then again, Ben did say that the chemo had destroyed her "reproductive organs inside" or something like that. so that sounds like a woman. Don't think she is a sex change.