Martha Cowles Chase ( November 30 , 1927 -- August 8 , 2003 ) , also known as Martha C. Epstein , was an American geneticist known for being a member of the 1952 team ( see Alfred Hershey ) that experimentally showed that DNA rather than protein is the genetic material of life .
Martha Cowles Chase ( November 30 , 1927 -- August 8 , 2003 ) , also known as Martha C. Epstein , was an American geneticist known for having experimentally showed in 1952 ( with Alfred Hershey ) that DNA rather than protein is the genetic material of life .