He described a system that allows our DNA to repair itself, without these constant repairs, we wouldn't survive. Professor Paul Modrich, laureate of the 2015 Nobel Prize in Chemistry. He entered the big world of science from a relatively close community of a small town. He started saving for college already in junior high school, he ordered his first radioactive material at age 15. For dozens of years he worked with e.coli bacteria and now his research helps physicians diagnose cancer. www.ceskatelevize.cz/porady/1044129…stry-laureate/