The image is from a prepared slide of an onion root tip in mitosis, which has been stained blue/purple. The cells have been magnified 400X. Cells in each phase of mitosis are labeled.The beauty of this image, as well as the others I've uploaded, is that it shows what students will see when looking through their own compound light microscopes. Rather than trying to connect an edited, color-corrected, (super) high-definition image from the internet to what students are seeing in their own scopes,