This lesson bundle consists of three separate lessons designed to give middle school students an introduction to Mendelian genetics. Lesson one (dominant and recessive genetics) focuses on dominant and recessive traits. During the lesson, students will be introduced to Gregor Mendel, learn a little about probability, and gain an understanding through practice about how to use the Punnett square. Lesson two (Incomplete dominance and Co-dominant traits) extends students knowledge of genetics by