1. http://plaza.ufl.edu/alallen/pgl/modules/rio/stingarees/module/what.html
2.
http://www.mybiologyclass.net/Mitosis.html
3.
http://highered.mcgraw-hill.com/sites/dl/free/0072437316/120073/bio14.swf
4.
http://www.cellsalive.com/mitosis.htm
5.
http://plaza.ufl.edu/alallen/pgl/modules/rio/stingarees/module/controls.html
6.
http://www.quia.com/rr/89527.html