Mendelian Inheritance Investigation Options Calendar Comparison

This PDF document shows three calendars side-by-side for comparing the time and materials needed for three different versions of the Fast Plants Mendelian Inheritance Investigation that is commonly called "Who's the Father?"

Option A involves students growing the F1 generation of Fast Plants in soil; students observe, then produce their own F2 seeds to generate phenotypic data from which they can infer genotypes.

Option B involves students growing the F1 generation of Fast Plants in soil; students observe, then purchased F2 seeds that were produced commercially are germinated for students to generate phenotypic data from which they can infer genotypes.

Option C involves students germinating the F1 generation of Fast Plants in a petri dish; students observe, then purchased F2 seeds that were produced commercially are germinated for students to generate phenotypic data from which they can infer genotypes.

Although this comparison calendar gives the monohybrid examples of conducting this investigation with a cross between homozygous Nonpurple Stem and Purple stem parental plants, the same investigation options can be used with dihybrid seed stocks in which the first generation (F1) is a cross between Nonpurple Stem and Rossette Dwarf seed stocks.