Genetics is often a fascinating but difficult subject for middle level students. They can see the results of genes in every organism, but trying to visualize what happens at the level of genes is challenging for concrete thinkers. This activity presents an approach that helps students understand how genotypes can translate into phenotypes. In this lesson, based on the article “Gummi Bear Genetics” (Baker and Thomas 1998), students examine gummi bears and see whether they can determine the genotype for color in three generations of a bear family. This free selection includes the Table of Contents and the Index.
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