Meiosis is used to make sperm and egg cells. During meiosis, a cell's chromosomes are copied once, but the cell divides twice. During mitosis, the chromosomes are copied once, and the cell divides once. For simplicity, cells are...

A complete, student-paced lesson on genetics and inheritance. Students work their way through illustrations and animated tutorials, and answer review questions along the way. There is a self-checking quiz at the end of the lesson.

Get an in-depth look at gene inheritance and transmission with this webpage. This site explores genetics beyond Mendel and his peas. Investigate transmission genetics with the following topics gene linkage, variation in gene expression,...

Resource provides a holistic and complete meiosis lesson with illustrations, animations, glossary, and links. Extremely detailed and helpful site.

A site about cell division and the cell cycle in the science of biology including mitosis, meiosis, and binary fission.

Explains what is meant by diploid and haploid cells and the difference between them.

An indepth introduction to genetics as a whole with sample lessons, vocabulary, and bibliography. From the Yale-New Haven Teachers Institute.