pUC19

pUC19 is a small, engineered circular DNA molecule used in genetic research and biotechnology. It functions as a plasmid—an independent, extra piece of DNA—that can be inserted into bacteria like E. coli for copying or gene manipulation. pUC19 contains specific regions that allow scientists to insert new DNA segments easily and includes markers that make bacteria carrying it easy to identify and work with. It’s a vital tool for cloning, enabling the production, study, or modification of genes in a controlled laboratory setting.