Education Technology

Punnett Square

Activity Overview

In this activity students will explore the rules of Mendelian Genetics using a single trait, height, in pea plants. A monohybrid cross using a simple Punnett Square is performed. Students can randomize their parental generation using the reset button so they can explore all facets of dominant and recessive alleles as well as understand the differences between phenotype and genotype.

Before the Activity

Students should have had an introduction to terminology and discussion about why members of the same species have variation. A high-level discussion about heredity should precede this lesson.

During the Activity

During this activity students will determine the probability of alleles appearing in the F1 generation based on the parental generation genotype.