Name Section Question 1, continued c)What does synchronization do to the cells and why is it necessary for this experiment? d) Why does low serum or no serum synchronize your cells? e) Since you used PDGF in your experiment and it stimulates your cells to divide, you assume the alien cells contain a protein similar to the PDGF receptor. How does pdgf binding to the receptor cause the activation of the receptor and subsequent promotion of the cell cycle? 7012fall2003Name:___________________________________ Section:_____ 7.012 fall 2003 2 Question 1, continued c) What does synchronization do to the cells and why is it necessary for this experiment? d) Why does low serum or no serum synchronize your cells? e) Since you used PDGF in your experiment and it stimulates your cells to divide, you assume the alien cells contain a protein similar to the PDGF receptor. How does PDGF binding to the receptor cause the activation of the receptor and subsequent promotion of the cell cycle?