Yes. The similaries can be so striking that even anecdotal evidence can be very persuasive for the argument that genes affect complex behaviors.
Well it is dharn spooky .... sometimes I think I am talking to my son... the mannerism..turn of phrase etc are so much alike....
I noticed that my grandson even has some of the same gestures that are perculiar to myself.
There is also the way the mind processes information... my son was considered a genuis... my grandson has the same ability ...when I first met him he was 8 years old... he could not read but was acing math... now a year later he is doing math several grade levels above his peers...
This leads me to believe that the way ones brain developes in certain ways or not is predisposed genetically. This may determine to some degree ones ability to 'believe' or not.
My jury is still out on that one. :o)
BTW-- from the little I understand about genetics and from my own observations I do not believe that homosexuality is genetic... I think it probably has more to do with gestation and nothing to do with nurture ...I certainly do not believe it is a choice... for the perponderence of those identifying as homosexual.
Just my 2 cents.