The image shows developing eggs in a Drosophila ovary stained for two types of signaling protein (red and green) involved in the establishment of the anterior-posterior polarity of the egg.
Biological Process: Establishment or maintenance of cell polarity
See JS Poulton, W-M Deng 2006 Proc Natl Acad USA 103:12775-12780.
Author: John S. Deng
Source: The Cell: An Image Library
