Which laboratory product development in the 1980s revolutionized DNA analysis and became essential for the Human Genome Project?

Product development in the scientific industry often involves rigorous testing, innovative thinking, and sometimes accidental discoveries that change the course of research. This poll tests your knowledge of a significant product development milestone in modern laboratory equipment that revolutionized scientific research capabilities worldwide. Do you know which groundbreaking scientific product changed the landscape of molecular biology?

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Polymerase Chain Reaction (PCR) thermal cycler
Digital pH meter
Scanning Electron Microscope (SEM)
Automated cell counter