James Watson, a scientist known for helping find the structure of DNA, became widely recognized for work that reshaped modern biology. He first saw how DNA looked in 1953, and this finding became an important record in science. The idea showed how information in living things is passed from one cell to another. Many people say this discovery changed medicine and other fields.

Watson also worked on big science projects that tried to assist doctors and researchers. One project helped experts develop a full map of human DNA. His scientific legacy now includes major contributions that supported progress in biology and genetics. Teachers say the work of many scientists, including Rosalind Franklin, helped make the DNA discovery possible.