Figure 5From: Regular mosaic pattern development: A study of the interplay between lateral inhibition, apoptosis and differential adhesionCell protein expression levels. The color key used throughout the paper to denote the expression levels of Notch and Delta in each cell. Four cells labeled a, b, c and d are identified in the sheet of cells, and their corresponding expression levels shown in the color key. Cell a is a primary cell. Cell b is a secondary cell. Cell c is a defect since it is contacting only one primary cell. Cell d is a defect since it is touching another primary cell.Back to article page