Esther M. Zimmer Lederberg: F Factor Memorial Elaboration

Joshua Lederberg is well-known for his work in discovering microbial sexuality (Nobel Prize, 1958). However, Esther Lederberg discovered and named the Fertility Factor "F", by which microbial sexual differentiation (maleness) may be conferred via phage infection. See the following links:

The True History of Fertility Factor F

Esther M. Zimmer Lederberg to Francois Jacob
Maleness Transferred by Infection at High Frequency, 1/12/1961

Esther M. Zimmer Lederberg Fertility Factor "F"

Esther M. Zimmer Lederberg
Fertility Factor "F"