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A Better Biology student favorite, this complete, step-by-step pedigree activity starts students off through the "Engage Your Brain" section, then moves to the background section where interesting information explains the formation of dimples by the zygomaticus muscle, including a linked video from Smithsonian Magazine. The activity then directs students to create (by hand or included concept map links) and interpret a pedigree using a fun example with a multi-cultural family whose names all begin with the letter “D” and where there is marriage, divorce, twins and death. The "Extension" section will have students apply their knowledge to analyze an unknown pedigrees.
Better Biology uses this activity in many ways - split into parts with the "Engage Your Brain" section as homework, then the activity in class the next day, followed by the "Extension" for homework. If teaching in blocks, this is a perfect activity for the full block. If students have only learned Mendelian genetics, this activity can be done in two parts. If they have completed non-Mendelian genetics, this is a great synthesis activity that will reveal student’s understanding and can also serve as a formative assessment.