Genetics enadale hono, imagine if they were all the same family first, genetics betwesene melku same nw, ena eza lay environmental factor bicemerebet, like 1 sew City 1 wendimu degmo rural biadeg yeteleyaye result yinorachewal, amegageb and everything, yeteleyaye wexet. So yes gene and environment yaskedal, environment degmo kefetegna effect alew