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Preparing Samples for DNA Extraction

SCEP student Rebecca Lynch prepares a scale sample to extract its DNA. She is adding a digestive enzyme to the sample that will break it down and separate the DNA. This is the first step in a process called Polymerase Chain Reaction (PCR). PCR is a way to create unlimited DNA samples from a single scale rather than taking many samples from the same specimen.

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Taken on July 12, 2011