Which famous scientific product was initially marketed as 'Polymerase Chain Reaction' before being rebranded with a name that helped it become ubiquitous in research labs worldwide?

The world of science relies not just on groundbreaking research but also effective branding and marketing to secure funding, attract talent, and communicate discoveries to the public. Some scientific products and innovations have become household names through clever branding strategies. Test your knowledge about one of the most recognizable scientific product brands that revolutionized its field!

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PCR by Roche (previously marketed only by its full technical name)
CRISPR-Cas9 (originally called Clustered Regularly Interspaced Short Palindromic Repeats)
Western Blot (initially marketed as Protein Immunoblot Transfer)
Gel Electrophoresis (first sold as Molecular Fragment Separation System)