Image of actin comet tails (red) formed by beads (blue) coated with the WASP protein.

Photo courtesy of Associate Professor Matthew Welch.

The BMP antagonist Gremlin is required for proper patterning of the vertebrate limb.

Photo courtesy of Professor Richard Harland.

Expression of the green fluorescent reporter protein gfp exclusively in a blue wavelength sensitive cone in monkey retina.

Photo courtesy of Professor John G. Flannery.

Induction of postsynaptic assembly by synaptic adhesion molecules expressed in non-neuronal cells.

Photo courtesy of Assistant Professor Lu Chen.