Gert asked:

Is necrophilia inheritable through the genes of the necrophile's family?

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The short and sweet answer: no, no,NO.

The longer answer: at this point we have, really, no idea about what is inherited and what isn't in
regards to mental attributes, except in rather vague statistical ways. BUT the absolute, strongest
correlations found, between identical twins, with really very general attributes such as intelligence, still
do not find 100% correlation. As far as detailed personality traits like heterosexuality and
homosexuality, there is some very small correlation among siblings. I'm not even sure that anyone
can say there is really a genetic component there. If there is, it's pretty small, as far as we know at
this point.

Now, specifically, necrophilia is a learned sexual preference. As far as I know, you cannot inherit it
any more than you can inherit a preference for Fords over Chevys or red hats over blue hats. Maybe
there's something heritable there, but if there is, it would be basically science fiction at this point to
assert it. There's no way that I can say, absolutely, that a preference for blue hats is certainly not
genetic, and so there's no way that I can say, absolutely, that necrophilia is not genetic. There's not
enough known about genetics. Maybe I bite my fingernails because of genetics. Haha. But I'd put all
those on about the same level of likelihood.

Steven Ravett Brown