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Practical DNA: Polymerase Chain Reaction (PCR)

We've all heard DNA described as "the blueprint of life," but what does that actually mean? Each one of the approximately 20,000 genes in our bodies contains the instructions for building a protein. In this module, we'll explain how RNA copies the genetic information contained in our genes and uses this information to assemble amino acids into proteins. Scientists call this concept "Central Dogma": DNA makes RNA and RNA makes protein. We'll also explore how we transmit genetic information from one cell to another -- and what happens when things go wrong. Along the way, we'll learn about techniques (such as polymerase chain reactions and gel electrophoresis) that forensic scientists use in DNA fingerprinting. Join us this week for murder and mayhem in the lab!

Universidad McMaster
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