Centrioles, organelles that organize the microtubule spindle required for cell division, duplicate at almost exactly the same time that DNA replicates during the cell cycle. New research points to ...

Two pair of centrioles lie just outside the nucleus, next to each other. A centriole is a cylindrical structure within the cell that plays a part in cell reproduction. The activities within this ...

At the beginning of nuclear division, two wheel-shaped protein structures called centrioles position themselves at opposite ends of the cell forming cell poles. Long protein fibers called ...

This spindle is made of fibers. The centrioles begin to separate. The activities are the same as in mitosis, except that in this cell the chromosomes attach to the membrane of the nucleus and then ...