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...

This video segment, adapted from the Interactive Secret of Life videodisc, explains the stages of mitosis, the process of dividing equally a cell's massive jumble of DNA just prior to cell division. [1:34]

[Free Registration/Login may be required to access all resource tools.] Cell division is just one of several stages that a cell goes through during its lifetime. Students will learn about the phases of the cell cycle, specifically the...

Understand what happens to a cell during mitosis.

This article illustrates the properties of cell division in prokaryotes and eukaryotes.

Use this series of images depicting the process of mitosis in the early embryo of the fruit fly, Drosophila melanogaster to make a mitosis flipbook. In this stage of Drosophila development, nuclei divide very rapidly without cell...

This lesson includes a Power Point presentation that will guide the students through an investigation of mitosis, or cellular division. The lesson will review the basic functions and parts of animal and plant cells and then introduce the...

Short animations, detailed information, and illustrated diagrams help explain the cell cycle and cellular division, focusing on binary fission and mitosis.

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.

This lesson plan provides an exploration of the structure and function of the cell in organisms. Students will consider the cell as a common unit of life, mitosis, and cell specialization. Includes links to multimedia resources.

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

This site from the PBS production, Scientific American Frontier "Never Say Die", includes a section entitled "The Clock of Life". It provides a discussion of cell death through shortening of the telomere. A good class activity included.

This article provides a discussion of DNA and how it replicates. Includes a chromosome map of a human male, a close-up of chromosomes just before cell division and a close up of a DNA molecule.

Explains what chromosomes are, how chromatids are related to them, and how they function together during cell division.