CENTRIOLE CAMPAIGN 2012

Election season is just leaving us, so what is this? Another campaign? WHAT IS THIS?! My friends, it is an election for presidency of the cell. 

My candidate has a lot to offer on this campaign. Let me introduce centriole. In a basic cell, there are hardly ever just one centriole, there are a number of centrioles. Centrioles make up called centrosomes. These are located close to the cell's nucleus. Centrosomes are made up of two centrioles which are orientated at right angles with each other and are embedded in a mass of amorphous material containing more than 100 different proteins. Centrosome is also duplicated during the S phase of the cell cycle.
Just before mitosis, the two centrosomes move apart until they are on opposite sides of the nucleus. As mitosis proceeds, microtubles grow out from each centrosome with their plus ends growing towards the metaphase plase. These clusters are called spindle fibers.
Spindle fibers have three main jobs. Some spindles attach to one kinetochore of a dyad with those growing from the opposite centrosome binding to the other kinetochore of that dyad. Others bind to the arms of the chromosomes. The rest continue growing from the two centrosomes until they extend between each other in a region of overlap.

I feel like that's a lot of information right now, I will include more later on in this campaign, but all of these functions are extremely important in the cell function.
If you would to read more into centrosomes and centrioles here's a link to check out: http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/Centrioles.html
Here's another if you'd like a visual: http://www.cellsalive.com/cells/cell_model.htm