1 List several similarities you see among the four cells.
2 List several differences you see among the four cells.
3 Do all cells have the same function? Explain.
4 Do all cells have the same DNA? Explain.
5 Do all cells have the same genes? Explain.
6 Why do you think the terms "ON" and "OFF" are written under the genes?
7 What do you think causes the four cells to appear and function differently from one another?
8 There are some sections of DNA that are not shaded with any colors. These represent non-protein-coding sections of DNA. If these sections of DNA do not code for a protein, what do you think these segments of DNA are used for? Are these sections of DNA even necessary? Explain.
9. Which genes do you predict would be on or off for a nerve cell? Write your prediction in the diagram below.