Do you think MBTI type is inherited?
Like many other traits, both physical and psychological, I believe that a pre-disposition for developing them (to some form of severity for spectrum disorders, as well as
"all or nothing" characteristics) is transmitted genetically from parents to offspring.
If so, do you think it leans towards particular functions being more likely as dominant and auxiliary (like Ni, Si, or Fe) or do you think it is more aligned with the letters - e.g., Intuitive parents are more likely to have intuitive children but no more likely Ne or Ni.
If I had to guess I'd go with parental behaviors (aka "nurture" vs. "nature") as being the trigger for any given inherited pre-disposition to be expressed toward developing behavioral traits that are at one pole of a cognitive function vs. the other.
In short, a child with a pre-disposition toward being iNtuitive that is raised by two Sensor parents might wind up being more balanced on N/S than strong "N."
Just like Mendel's experiments with bean plants, genes that express height are additive, so that the TOTAL number pf height alleles contributed by each parent ultimately determines the potential height of the offspring; I think that components of
"nature" and
"nurture" can also interact additively, even if figurative in comparison to
"pure" genetic inheritance.
BTW, my family's MBTI info is below:
Papa Halla = ESTJ
Mama Halla = INFJ
Halla74 = ESTP
Halla's Big Bro = INTJ
Yeah, yeah - I'm the black sheep because I'm the only perceiver in the family, Ha Ha Ha.