Every time a cell divides, it must copy its DNA with extraordinary precision. But this process is constantly challenged by ...

The DNA packed inside every human cell contains instructions for life, written in billions of letters of genetic code. Every time a cell divides, the complete code, divided among 46 chromosomes, must ...

Frailty can creep up quietly. One year a person is carrying groceries without thinking about it; a few years later, a stumble on the front steps leads to a hospital stay. Doctors have long known that ...

The human genome is made up of 23 pairs of chromosomes, the biological blueprints that make humans … well, human. But it turns out that some of our DNA — about 8% — are the remnants of ancient viruses ...

Major biotech companies that churn out made-to-order DNA for scientists have protections in place to keep dangerous biological material out of the hands of would-be evil-doers. They screen their ...