Recombinant DNA technology
How can we make bacteria produce human proteins?
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Recombinant DNA technology has enabled scientists to provide cheap, pure, and readily available medicines for a variety of illnesses. By using restriction enzymes, plasmids, and ligases, we can cut and paste the genes for almost any protein into bacteria and express usable proteins. These proteins include human growth hormone, insulin and many others used to treat dwarfism, diabetes, stroke, and heart attacks, as well as cancer.