Mitosis is the process of nuclear division, which occurs just prior to cell division, or cytokinesis.

Mitosis is the process of nuclear division, which occurs just prior to cell division, or cytokinesis. During this multistep process, cell chromosomes condense and the spindle assembles. The duplicated chromosomes then attach to the spindle, align at the cell equator, and move apart as the spindle microtubules retreat toward opposite poles of the cell. Each set of chromosomes is then surrounded by a nuclear membrane, and the parent cell splits into two complete daughter cells.

References:
http://www.biology.arizona.edu/cell_bio/tutorials/cell_cycle/cells3.html
http://www.nature.com/scitable/topicpage/mitosis-14046258

Video:
www.youtube.com/watch?v=gbSIBhFwQ4s

#medicine   #biology   #mitosis   #science