Diffusion Concentrates Cell Differentiation Signals in Drosophila Embryos (IMAGE)

North Carolina State University

Diffusion Concentrates Cell Differentiation Signals in Drosophila Embryos

Caption

Diffusion causes the signal (Dorsal proteins; green) to concentrate on the ventral (lower) side of the embryo over time. Left side: Cross section of young embryo, 1-1.5 hrs old, with uniform amounts of Dorsal protein spread throughout the embryo. Right side: Cross section of older embryo, 2.5 hrs old, with Dorsal protein concentrated on the ventral (lower) side.

Credit

Greg Reeves, North Carolina State University

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