I know that parent beliefs have very strong influence on child, but is it possible that genetic factor also play a role? I doubt that the content of any religion could be heritable through genes nor anyone could be genetically predestined to be Christian, Jew, Buddhist or votary of any particular religion. But is it possible that some kind of sensitivity to religious aspect of life could be heritable?
I know that it is hard to distinguish genetic and environmental factor in such case, but maybe someone have already made such research for example on monozygotic and dizygotic twins or adopted children?
I've thought that if it is indeed heritable, then celibacy in the Catholic Church might be suicidal for this faith, as it eliminates the (potential) "godliness genes".