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This Shinyapp demonstrates some of the basic concepts of classical genetics, which can be used as a teaching and learning tool. In the current beta version, the app can do the following:

Takes user input of strings as genotypes for parents

Uses the inputted parental genotype information to determine whether the loci are heterozygous or homozygous for the alleles.

Uses the inputted parental genotype information to generate the possible unique gamete(s) each parent can produce.

Enables the user to make a cross between the parents to generate a Punnett square containing the genotypes of all progenies ensuing from the cross.

Gives a tabular summary of the unique genotypes in the Punnett square and their expected genotype frequencies.

Assuming complete dominance at each locus, the app allows users to visualize hypotheses about gene interactions and their phenotypic predictions.

Specifically, the app uses different colors to highlight individuals in the Punnett square that would exhibit the same phenotype under a given gene interaction hypothesis.

Currently, phenotypic predictions for gene interaction hypotheses on independent assortment and classical digenic epistatic interactions can be visualized in the app.