Genetics
Amoeba Sisters - The Great Divide
Several good heredity activities along with worksheets and videos
Tour the basics of DNA and heredity
Using karyotypes to predict genetic disorder with animations
A good pea breeding interactive simulation
Genetic Learning Center's DNA Extraction Virtual Lab
See which traits are located on each chromosome with this "Chromosome Viewer"
Online Mendelian Inheritance in Man from John Hopkins University
Reproduction and Heredity tutorials and activities
Genetics tutorials with assessment activities
Diagrams:
Three Steps of Mendel’s Experiments
Monohybrid Cross: Homozygous Plants
Monohybrid Cross: Heterozygous Plants
Why Peas? (1)
Why Peas? (2)