Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Regulatory relationship between Eyeless, Sine oculis and Cut in the eye-antennal disc. (A-G) Confocal images of third instar eye-antennal discs. Brackets in A-D mark the zones of ct-positive cone cells. (H) Scanning electron microscopy of an adult head. Arrows indicate a partial antennal segment in the place of the eye.
