I . Dr Watson
the companion of Sherlock Holmes in the stories by Arthur Conan Doyle . He is the narrator of most of the stories and his simple, pleasant attitude to life and events contrasts with the complicated thought processes of Sherlock Holmes. In the stories, he lives with Holmes at 221B Baker Street .
II . James D Watson
( James Dewey Watson 1928– )
a US scientist who did important work on DNA (= the substance in the human body that passes from parents to children and makes it possible to identify every individual human being). He worked mainly at the Cavendish Laboratory in Cambridge, England, and in 1962, with Francis Crick and Maurice Wilkins, he won the Nobel Prize for medicine for his work.