Sure, but it's unlikely that you would have an IQ that low, and not have a specific medical disorder that is causing some of your impairment. E.g, Down Syndrome is a chromosomal change, something that can be measured outside of a 'bad genetics'.
What? You somehow think that if there is a named thing then it's not genetics. It's genetics both if it's a named thing, and if it's yet unnamed thing too.
There is a thin line between disability and just different genetics.
E.g. is it bad for a primate to have bad bite strength? What if that disability enhances their thinking ability (by both allowing their brain to expand more since the muscles holding the jaw are weaker and by forcing them to use something other than their bite strength)?