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Multifactorial Inheritance Teacher Resources
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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.
Young scholars complete a pre-test on the relationship between heredity and the environment. As a class, they write down descriptions of themselves and identify which traits can be changed and not changed. In groups, they determine which genes are dominant and recessive and develop a model of DNA. To end the instructional activity, they research a genetic disorder and write a geneotype for each member of the class.
High schoolers explore how testing for particular genetic variations can help people to make decisions in lifestyle and health care choices. They analyze a Web-based case study, participate in class discussion, view video segments and formulate an opinion about genetic testing.