Genetics involves the inheritance of specific traits. Some of these traits can be tested fairly easily and their occurrence traced among family relatives. In this activity, students investigate traits for four human characteristics, including the ability to taste the chemical PTC. They graph their data to help better visualize human variation patterns. They learn that traits can be inherited, environmentally acquired, or created by a combination of hereditary and environmental factors.

Kit Contents:

50 x PTC test paper, Strips
50 x Control test paper, Strips
50 x Genealogy and Data Charts
1 x Teacher’s Guide with MSDS

**Not included and needed for instruction: Projector, graph paper