Chan Wei Lik wrote:

From:   Kotatsu Neko [SMTP:orgg@ix.netcom.com]

I'd say that the curse is, at best, like

an incredibly recessive gene - it happens so rarely to the original
victim's descendants that you might as well not bother.<<

I just recalled something. Remember how the Musk dinasty breeds? If the
curse can't be inherited, how can the children be human? If the curse can
be inheritable, 99% of their population would be female.

That's not a question of the curse being inheritable but the form
being inheritable.  However, the Musk Dynasty also indicates that
that the offspring is slightly influenced by the nature of the cursed
parent's alternate form.  Thus, Shampoo's daughter might look like
the Puma sisters, Ranma's son might be one of those Bishonen guys,
And I'm sure Akari would love a son or daughter with a cute little
curly tail.