For a class of 32 students working in pairs. Students investigate the frequency of genetically controlled traits within their classroom population. By exploring taste response traits and recording classroom data, students are able to conduct a Hardy-Weinberg analysis of their classroom. Kit includes multiple types of sample test paper (including paper treated with PTC, sodium benzoate, and thiourea, as well as a control paper to help reinforce experimental design) plus teacher's manual and reproducible student guide.