Skin cell division
Cell division is the essential process by which all living things reproduce, but many hurdles must be jumped in order for division to be successful. A cell will literally disassemble, replicate, and reorganize nearly all of its structures, partitioning its contents into two newly born daughter cells. In these mouse skin cells, the middle cell has condensed its replicated DNA (in white) and rounded up to facilitate this reorganization. Cells must also decide how they will distribute proteins to each daughter. Here, a protein known as Celsr1 (in red) has been internalized from the cell membrane. Once division is complete, these proteins will be redistributed back to their correct locations within the newly formed cells.
Image captured and submitted by Joel Tamayo, Princeton University.