Mitosis+Cookie+Model


 * Mitosis Model**

Interphase-The chromosomes are doubled or cloned. Prophase-The chromosomes are developing and the fibers that are attached to the centrioles get attached to the chromosomes. Metaphase-The duplicated chromosomes line up of the center of the cell and each chromosomes become attached to the spindle fibers then divides in the next stage. Anaphase-The paired chromosomes of each chromosome separate because the spindle fibers pull them away. Telophase-Spindle fibers untwist and not visible anymore. The develop a nucleus membrane. Cytokinesis-The chromosomes and genes carefully maintained from a parent cell too, to daughter cells.

Questions- 1) What is produced during mitosis? Mitosis begins with single parent cell and results with 2 daughter cells.

2) Why must body cells go through mitosis? Body cells must go through mitosis because they need to develop and grow. They also need to repair and replace.

3) In my opinion, if the steps of mitosis weren't in order, it wouldn't be a success. In order for the single parent to have a result of 2 daughter cells, it must be accurate. For example, let's say the stage metaphase was the last stage. The cell development process will be terminated or a failure. Metaphase is the process where the chromosomes line up. If the line up at the equator of the cell didn't take place then you can end up with no cell division. Telophase is the step before the step of Cytokinesis. If metaphase was skipped the there will not be any telophase.

Down syndrome is where there is extra genetic material which causes delays in the way a child develops, both mentally and physically.Normally, A baby is supposed to have 46 chromosomes: 23 from the mother and 23 from the father. In most cases of Down syndrome, a child gets an extra chromosome 21 for a total of 47 chromosomes instead of 46. So theres extra cells, which means mitosis and down syndrome is different.