[Free Registration/Login may be required to access all resource tools.] During mitosis, the DNA in a nucleus must replicate. The copied DNA is divided into two genetically identical sets, so that after cytokinesis or cell division, each...

Online children's story that teaches about genes and how they direct how you react to things in your environment. Click on "next" at the bottom of the story to see how different people respond differently to harmful substances.

An interactive website that explores information about genes, mitosis, meiosis, cloning, and gene mutation. Concepts are discussed in detail with an interactive glossary and animations. At the end of each section quick questions are...

Read a passage about chemotherapeutic agents and answer the follow-up questions using the graphs provided.

This article from DNA from the beginning is loaded with goodies about genetics and DNA. Starting with Mendel all the way through the concept of DNA, you will see how life is given certain characteristics. Some animations and audio clips...

Tutorial on DNA basics that goes along with an online quiz over the material. Use the naviagation buttons at the bottom of the page to go to the quiz over the material.

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

This is the official division for researching the implications of the Human Genome Project. Find out about topics being discussed involving the ethics of the program, how it is socially accepted, and what sort of legislature is involved...

This is a great lesson plan that combines Karoytypes and evolution. Students will recognize that the chromosomes of chimpanzees and humans are remarkably similar, then correlate that to their evolutionary relationship.

Learn about disorders caused by a deletion of DNA from one of the chromosomes. This article explains causes, inheritance, symptoms, diagnosis, and treatment of Cri-du-Chat Syndrome and Williams Syndrome.

An in-depth discussion of the different parts of eukaryotic and prokaryotic cells as well as a thorough explanation of organelles within the cell. The text is better suited to high school and middle school. However, there is a picture of...

This lesson focuses on cell division including how chromosomes are formed from DNA, how many chromosomes there are in the human body, and diagrams of cell division. It also provides links to a video and a test.

Learn about DNA and decoding the human genome by clicking graphical DNA models. You can also review a timeline that shows important moments in human genetics research. In Spanish.

Chromosomes carry genetic information in a molecule called DNA. A type of cell division called mitosis ensures that when a cell divides each new cell produced has the same genetic information.

Explore the topics of chromosomes in the science of biology including what they do, DNA, alleles, genes, proteins and human chromosomes on this site.

Explains what chromosomes are, their structure, their functions within a cell, and the health impact of mutations in a gene sequence.

Explains how DNA contains genetic material and how it is housed in chromosomes. This lesson is 2 of 5 in the series titled "DNA."

Explains how DNA contains genetic material and how it is housed in chromosomes. This lesson is 1 of 5 in the series titled "DNA."

Explains how DNA contains genetic material and how it is housed in chromosomes. This lesson is 4 of 5 in the series titled "DNA."

Defines chromosomes, what they are made of, their structure, different types, and chromatids.

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

The interactive activity examines the discoveries of Barbara McClintock on the correlation between chromosome behavior and breeding experiments in corn.

Animation illustrating how the jumping gene, Alu, reproduces by copying itself and inserting into new chromosomes.

This site from the Human Genome Project for the Oak Ridge National Laboratory is the index page for chapters which include an introduction to genes, the mapping sequence of genes, and the impact and future of the Human Genome Project.