By Elizabeth A. Havey of Boomer Highway Mothers/fathers, sisters/brothers and a variety of wonderful combinations make up families—yours and mine.  We live together and grow together.  Often we form wonderful memories of day-to-day life that sustains us in times of struggle and provides laughter when we gather for birthdays and weddings. And though we may share hair color and skin tone, the shape of our noses or the ability to sing or play hockey, we also share a biological heritage that can sometimes mean a propensity for a certain cancer, or the possibility of inheriting a familial disease.  Though family get-togethers often mean sharing and planning for the future of children and grandchildren, they should also provide an opportunity for remembering the past. The reason: in our mobile society where every day more blended families are formed and those families often live thousands of miles from relatives, it’s become extremely...