LESSON SEQUENCE The following lesson sequence is designed to cover topics Mendel's plant experiments, Mendel's first and second Laws of Inheritance, monohybrid and dihybrid crosses, Punnett squares and problem solving, variation in heredity (i.e. complete, incomplete, and co-dominance), pedigrees, sex-linked inheritance, and genetic disorders. The entire duration of teaching is estimated to be approximately 2-3 weeks.