Start seeing double. The American Museum of Natural History website provides pupils with information about Dolly, the cloned sheep. Learners find out the procedure used to create Dolly along with why scientists clone animals.

This site from Ohio State University provides a good outline of the process of replicating DNA. The outline contains a numerous amount of embedded vocabulary links, illustrations of the process and also review questions and solutions.

A narrated animation demonstrating a the DNA replication problem, trinucleotide repeat. Video [1:08]

Once the code was discovered, how could DNA be manipulated, what tools would be needed to make use of DNA. These are some questions answered in this interactive website.

In story form, this complete site examines what DNA is, the structure of DNA, genes, and replication. For clarity purposes, the text is supplemented with drawings.

A look at protein synthesis in words and pictures. This website discusses the processes of replication, transcription, and translation. Also covered is Beadle and Tatum research that explains that one gene codes for one polypeptide....

This video segment from the Secret of Life School Video: "On the Brink: Portraits of Modern Science" explores the genetics of breast cancer. [3:40]