anyone who is anything outside of the biblical "norm" of woman/man; wife/husband; male/female will rarely if ever be baptized or given responsibility in the congregation. i'm sure he/she will be allowed to study and attend meetings, but that's about it. unless that person never tells a soul and chooses to completely look and act as one gender.
according to the child welfare league of american the term "hermaphrodite" is out dated. the politically correct term is:
Intersexed. Generally applied to individuals born with ambiguous genitalia (an outdated term would be hermaphrodite). In the past, most intersexed individuals have had surgery shortly after birth in an attempt to give them an "identifiable" gender. There is now much discussion about this practice, but so far little has changed. Parents often feel forced to make a quick decision with little information. Most intersexed persons are raised as female.
here's some interesting info about Gender Identity Disorder (transexuals) and Jehovah's Witnesses (it also mentions the intersexed):