A computational study has replaced the carbon in cytosine, guanine, adenine, thymine and deoxyribose with nitrogen and boron to understand what carbonless DNA might be like. The study generated a set ...

(Reuters) -A Washington jury on Tuesday ordered Bayer to pay $100 million to four people who say they were sickened by toxic chemicals known as PCBs at a Seattle-area school, but found the company was ...