ClassFlow
Class Flow: Using a Punnett Square
[Free Registration/Login Required] This flipchart show students how to use a Punnett Square to introduce how homozygous and heterozygous genotypes are inherited and how they determine phenotypes.
Educaplus (Jesús Peñas Cano)
Educaplus: Genotipo Y Fenotipo [In Spanish]
Cross different types of peas and study the phenotype and the genotype of the offspring.