what we did in class 1/10/10

This week in class we have been leaning about cellular reproduction. We have been learning about how cells reproduce by splitting themselves. But when things split they only have half of what they used to. But cells right before they split they copy all of the organelles and a nucleus. then they split so now when they split they will have everything they need. This process it called mitosis.

Mitosis is the process that i was just talking about. There are 5 stages of mitosis and they are called interphase, prophase, metaphase, anaphase, and telophase. Each of these phases lead to the splitting of cells. In interphase the DNA has copied not enough to make a chromosome. Prophase is when the DNA is made into chromosomes. In metaphase the chromosomes align themselves in the cell. Anaphase is when the chromosomes start to separate in order to split. Telephase is the last stage and is when the cell finally starts to split.