Tag: genetics

  • Variations on a Human Face

    Variations on a Human Face

    Students use coins to simulate how alleles separate during meiosis.  One student plays the father, and one plays the mother, a coin flip then determines the traits of their theoretical offspring.   Note: This is a representation of how traits may work with simple Mendelian Genetics. Human traits are actually much more complicated. Many are…

  • Chi Square Analysis

    Chi Square Analysis

    The new Advanced Placement Biology curriculum includes a few topics on statistical analysis under the section on Science Practices: “Students can use mathematics appropriately.”  Most introductory level biology classes (freshman) do not include these lessons because it can be difficult with students who haven’t advanced very far in algebra.   Seniors in  AP Biology should…

  • Are Exit Tickets a Good Way to Assess Understanding?

    Are Exit Tickets a Good Way to Assess Understanding?

    My genetics unit for Freshman Biology always starts with a history lesson on Mendel and our understanding of heredity at that time.   One of the main themes of this lesson is a comparison between two ways of thinking about inheritance and two competing theories:    The Particulate Theory and the Blending Theory. Students struggle…