Which scientific instrument was developed by Kary Mullis in the 1980s that revolutionized genetic research and earned him a Nobel Prize in Chemistry?

This trivia poll challenges your knowledge about a pivotal moment in scientific product development that revolutionized laboratory research. Scientific equipment development often requires years of iteration and breakthrough thinking, but some innovations stand out for their transformative impact on research capabilities and methodologies. Test your knowledge about one such game-changing scientific instrument that changed how researchers approach their work.

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Polymerase Chain Reaction (PCR) machine
Scanning Electron Microscope (SEM)
Nuclear Magnetic Resonance (NMR) spectrometer
Gas Chromatography-Mass Spectrometry (GC-MS) system