a rap about PCR highlighting a few things:

*the beautiful way in which DNA is copied (using enzymes called Polymerases),
*the great insight of Kary Mullis to create a useful tool that could copy DNA in monumental, exponential manner (using primers and heating/cooling cycles).
* the human interest side of discovery: the first guy to invent a new technology may just end up with a Nobel Prize, and, should he/she choose, end up riding down Rodeo Drive with movie stars.
* DNA is cool. Although we all know that the future (and the past) is RNA, DNA is still cool and understanding a bit of the molecular biology of DNA, you can set yourself up for some great insights into biology, as well as understanding the many, many tools that utilize DNA's robust base-pairing for diagnostic or research purposes.

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