This lesson teaches students how to do a dihybrid cross using a Punnett Square. Students examine how the trait "black or white hair" and the trait "short or long hair" are inherited in guinea pigs. The powerpoint included in this lesson takes students through this advanced beginner topic slowly, step by step, using illustrations and animations at every point. Students then practice making dihybrid crosses on their own. Since the individual portion includes drawings of guinea pigs, you can choose to have students color the guinea pigs to illustrate their understanding if you wish. I have had tons of success with this lesson!
Zip file contains: 1.Powerpoint 2.PDF, to guarantee formatting and for easy printing, 3.Word document, to make it easier to edit.
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