Animal testing: cruel and inhumane, or innovative and life-saving? Scholars explore the topic and form their own opinions with help from the highly informative website. Pupils read a comprehensive overview of the topic, including...

Explanation of how genetic engineering works. Analogy with molecular scissors cutting a "sentence" of DNA. Has nice animations.

There is plenty of general information about Polycystic Kidney Disease at this interactive site. You can find videos, interviews, animations, and explanations about many topics including: treatment, causes, testing, incidence, and symptoms.

An interactive, self-paced lesson on polymerase chain reaction. Students read information and watch descriptive animations to aid in understanding. A self-check quiz follows the activity.

Learn about the endosymbiotic theory. This theory explains the evolution of cells from a mitochondria and chloroplast working together in a symbiotic relationship to the current cell structure.

Read this short article to find out about the history of cloning and genetic engineering. Continue on to the next page to find out how cloning is done. Simple terms and fun animations make it easy to read.