I concur that genes dont really tell the whole story. My grandmother was a big influence on me, she was a tow-the-party-line Democrat, as is her daughter, my aunt. But, my grandfather(one she was once married to) is a staunch conservative, as is her brother. My parents were apolitical, but I would say they would be moderate. My grandmother on my moms side is pretty old school, southern(pro-segregationist) conservative Republican(who plans on voting for Hillary, actually). I would say my family is made up of what we would consider today to be conservative democrats and liberal republicans(all my conservative relatives are actually anti-religion).
I describe myself as a liberal-socialist-democrat, probably the most left-leaning member of my family.