Imaginal Discs
Epidermal Growth Factor
Epidermal growth factor is a signaling molecule that stimulates the growth of epidermal tissues during development and throughout life. Stanley Cohen discovered epidermal growth factor (EGF) during studies of
Fruit Fly Life Cycle

Beadle and Ephrussi’s Technique to Transplant Optic Discs between Fruit Fly Larvae

Beadle and Ephrussi Show that Something Besides Eye Tissue Determines Eye Color in Fruit Flies

