On day 9 of #LMB365 we have another stunning image by Katja Roeper @katjaroeper in the Cell Biology Division @CellBiol_MRCLMB. This shows a Drosophila embryo viewed during the process of dorsal closure. The cell-cell adhesion molecule Cadherin is labelled in red, the LIM-domain protein Zasp52 is labelled in green, and nuclei are in blue. Drosophila is a key model organism to study fundamental aspects of biology and Katja’s group uses it to understand organ formation