A deconvolved wide-field fluorescence microscope image of metaphase (a stage of mitosis) in neural tube cells from a chick embryo. The fluorescent compound DAPI (blue) has been used to visualise DNA. Tubulin (microtubules) are in green, and a fluorescent red antibody against phosphorylated histone 3 (phospho H3) shows that these cells are undergoing mitosis.