Alexander Ivanovich Oparin ( Алекса́ндр Ива́нович Опа́рин ; in English , Aleksandr Ivanovich Oparin ) ( March 2 ( O.S. February 18 ) 1894 , Uglich , Russia - April 21 , 1980 , Moscow ) was a Soviet biochemist notable for his untested theories about the origin of life , and for his book The Origin of Life .
Alexander Ivanovich Oparin ( Uglich , Russia , 2 March ( O.S. 18 February ) 1894 - Moscow , 21 April 1980 ) was a Soviet biochemist .