Diacumakos completed her postdoctoral training at
Rockefeller University between 1958 and 1960. She made important contributions to the micromanipulation of mammalian cells. She studied the displacement of chromosomes during extraction at different mitotic stages. She demonstrated the precise fusion of mammalian somatic cells using microsurgery in 1972. She was made head of the
Cytobiology Laboratory in 1975 after Tatum died unexpectedly. In 1979 she collaborated with
William French Anderson to insert a functioning gene into a defective cell within a living mouse, correcting a genetic defect. Her microsurgical techniques opened new paths to curing medical conditions. She lectured at the
Pasteur Institute in 1981. Diacumakos died of a heart attack on June 11, 1984. == References ==