Heredity And Environment—Student Laboratory Kit

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Which is more important—heredity or environment? Students investigate this age-old question using albino tobacco seeds from heterozygous parents—ones that should produce a ratio of three green for every one albino tobacco plant. Some seeds are germinated in the light and others are germinated in the dark. The environments are then switched. After reversal, the ratios change and students must use their data to defend which is more important—heredity or environment. An excellent experiment to serve as a starting point for a more in-depth examination of this continuing question.

Complete for 30 students working in pairs.