The zip file contains a pdf, Excel file with sample data, and a Word document you can customize to suit your needs.
In this activity, students investigate a polygenic pattern of inheritance using the easily observable characteristic of height.
In this activity, students will:
- Investigate and discover patterns of variation within a species.
- Graph and analyze data from a scientific investigation in order make some conclusions about patterns of inheritance.
- Observe the effect of traits that are determined by multiple genes.
- Observe the effect and importance of sample size in conducting a science investigation.
Students measure the height of themselves and classmates, graph the data for their class, and take note of how this pattern of trait variation differs from classic Mendelian traits like Widow's Peak.
Students then ask and investigate what this graphical pattern looks like if more students and classes are surveyed, how the pattern might look in different populations on campus - height by grade level, or by class, girls versus boys.
A great activity to model polygenic inheritance, get kids asking questions, and measuring, collecting, and analyzing data.
This activity can take 3 to 4 class periods to complete. The document includes teacher pages, suggestions for prior and post activities, variations to engage student interest, and answer key.