A new Q&A with The Sims 3 Supernatural senior producer Kari St. John has been posted on TheSims3.com:
SimGuruHydra: Will children inherit the same werewolf form as their parents? Normally facial structure, hair color and eye color are passed down. Will a child’s features be a mash-up of the parents?
Kari St. John: Yes, a werewolf child of two werewolf parents will take on the genetics of those two parents, the same way a child would of two ordinary Sims parents would.

