Biology
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DNA is extracted from human cells for a variety of reasons. With a pure sample of DNA you can test a newborn for a genetic disease, analyze forensic evidence, or study a gene involved in cancer. Try this virtual laboratory to perform a cheek swab and extract DNA from human cells. PCR is a relatively simple and inexpensive tool that you can use to focus in on a segment of DNA and copy it billions of times over. PCR is used every day to diagnose diseases, identify bacteria and viruses, match criminals to crime scenes, and in many other ways. Step up to the virtual lab bench and see how it works!
Learn.Genetics™
Gaia: A New Look at Life on Earth by James Lovelock
This feature allows you to create and manage separate folders for your different research projects. To view markups for a different project, make that project your current project. This feature allows you to create a citation to the page you are reading that you can paste into your paper. Highlight a passage to include that passage as a quotation. This feature allows you to save a reference to a publication you are reading for your bibliography or generate a bibliography you can paste into your paper. This feature allows you to print the page you are reading, including your notes or highlights (IE users must have "print background colors and image" setting selected.)Cellular
Botany
Human