Chapter 8

This chapter really answered the mystery to my questions. It taught me that my belief of the cells that I believed in and rose up with was actually quiet opposite to the actual thing. What I believed that every different cells were different in the DNA that is given to them. However, through this chapter, I have found out that cells contain the exact same DNA. It was not as simple as I believed it to be. Just like the olfactory system, every cell has a different role for their locations. Shubin explains that the cells in the olfactory system are able to complete their tasks that are given through the different ribosomes that are active. Similar to the Sonic Hedgehog, the DNA only use a part of the strand and not the whole thing. For an example, if the cells in the eyes use the same DNA strand as the cells in the brain, our body's system would be out of order. It is through this method in which cells receive their different tasks within the body. This is how we maintain our body's systems, such as the olfactory system, the immune system, or the cardiovascular system.