Saturday, January 9, 2010

mighty mitosis

We learned about mitosis this week. During mitosis the nucleous cell divides. There are four steps in mitosis called prophase, metaphase, anaphase, and telophase. During each of these steps, they all lead up to a new nucleous at each end of the cell. Also there is another step called interphase, and during this step the chromosomes spread out in the nuclous. During prophase, chromatin coils up and folds the strands of genetic material. The cromatid pair forms an x- shape and each half of the x shape has the same genetic information. During metaphase, the chromatid x's line up in the cell. During anaphase the two halves of the x- separarate from eachother and the cromosomes move apart to each opposite end of the cell. Lastly, during telophase a new nuclear membrane forms around each set of chromosomes. This results of a new nucleous at each end of the cell.

No comments:

Post a Comment