User blog comment:Vafiz/A bit of genetics.../@comment-24850639-20170209182736/@comment-156.205.119.71-20170210071357

Well, Roger had that haki so we are sure that he is "aa". Maybe Rouge was hybrid "Aa" so she doesn't have haki herself but the out comes of Roger and Rouge will be 50% "aa" and 50% "Aa", and maybe Homing and his wife were both hybrids so there are 25% there child would be pure "aa".