"Drosophila melanogaster" was introduced into the field of genetic experiments by  an American evolutionary biologist who won a Nobel Price in what year?
Drosophila embryogenesis "Drosophila" embryogenesis, the process by which "Drosophila" (fruit fly) embryos form, is a favorite model system for genetics and developmental biology. The study of its embryogenesis unlocked the century-long puzzle of how development was controlled, creating the field of evolutionary developmental biology. The small size, short generation time, and large brood size make it ideal for genetic studies. Transparent embryos facilitate developmental studies. "Drosophila melanogaster" was introduced into the field of genetic experiments by Thomas Hunt Morgan in 1909.
The Major Transitions in Evolution The Major Transitions in Evolution is a book written by John Maynard Smith and Eörs Szathmáry (Oxford University Press, 1995). This was a seminal publication that continues to contribute to ongoing issues in evolutionary biology. At the time of its publication, Egbert Giles Leigh, Jr reviewing for "Evolution" commented that it "may be the most important book on evolution since [R.A.] Fisher's (1930) "The Genetical Theory of Natural Selection"".