Barbara McClintock (b.1902) was awarded the 1977 Nobel Prize in Physiology or Medicine "for her discovery of mobile genetic elements." McClintock is the only woman to win an unshared Nobel Prize in the field of Physiology or Medicine.
Barbara McClintock. Barbara McClintock (1902-1992) was awarded a Lasker Prize in 1981 and Nobel Prize in 1983. She discovered that genes could move within and between chromosomes. Photos from: "Ten Historic Female Scientists You Should Know"