genetic engineering

Coronavirus researchers need the right genetically engineered mice to test potential vaccines. But most of these mice have been on ice. One lab is breeding a new generation of mice to meet the demand.

Labs are churning out more and more synthetic DNA for scientists who want to use it to reprogram cells. Some say the technology has outpaced government safety guidelines put in place a decade ago.

Researchers think genetically engineered versions of microbes that can live in humans could help treat some rare genetic disorders and perhaps help with Type 1 diabetes, cirrhosis and cancer.

Cottonseed is full of protein but toxic to humans and most animals. The USDA has approved a genetically engineered cotton with edible seeds. They could eventually feed chickens, fish — or even people.

Scientists demonstrate that a "gene drive" can rapidly spread a genetic mutation through a species, perhaps providing a potent new weapon against malaria. But there are plenty of skeptics.