Scientists first read the human genome, a three-billion-letter biological book, in April 2003. Since then, researchers have steadily advanced the ability to write DNA, moving far beyond single-gene ...

The modification of the genetic makeup of cells. Genetic engineering modifies the DNA in cells to alter their behavior. In 1953, the discovery of the DNA double helix, technically deoxyribonucleic ...

Genetic engineering, also known as genetic modification, is a set of technologies used to change the genetic makeup of cells, including the transfer of genes within and across species boundaries to ...