CK-12 Foundation
Ck 12: Episd: Punnett Squares
[Free Registration/Login may be required to access all resource tools.] While building on the study of genetics, students will understand how to predict genetic traits with the application of Punnett Squares.
PBS
Pbs Learning Media: Mendel's Laws of Genetic Inheritance
This interactive activity, adapted from the Dolan DNA Learning Center, uses Punnett squares to illustrate Mendel's laws of inheritance and how a particular gene combination results in a 3-to-1 ratio of dominant-to-recessive traits.
Cold Spring Harbor Laboratory
Dolan Dna Learning Center: Learn About Genetics: Genes & Inheritance
An animation introducing the basic concepts of cells, DNA, recessive inheritance, and Punnett squares.