Detecting Proteins with Antibodies: Part 3

This image shows the expression of the yellow gene in the wings of three fruit fly species.

In this example, different animals were used to generate antibodies, but the overall method was similar to the one used in the butterfly wing.

Dark-colored wings from three species of drosophila on the left; on the right is a blue Y shape labeled rat anti-yellow antibody and the red Y shape with attached green sphere on the right side is labeled rabbit anti-rat antibody with a fluorescent marker. A purple shape underneath is labeled yellow protein.
Rabbit anti-rat antibody with a fluorescent marker binds to Rat anti-Yellow antibody