This Reduce the Risk: The Polygenic Pedigree Challenge lesson plan also includes:
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If diseases are genetic, why does my brother have heart disease, but I don't? To find out, young geneticists use different colored cotton pom poms representing genetic risk factors in an activity that could work for a variety of ability levels and ages. After completing a three-generation pedigree examining predisposition to heart disease, the class discusses the results, as well as other influences on coronary issues.