Learn how to to focus on a segment of DNA and copy it billions of times...

[Edmund Fraser]

PCR (short for Polymerase Chain Reaction) 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!

http://learn.genetics.utah.edu/content/labs/pcr/

[Cameron Clarke]

Yup. We'll get to PCR very soon :)