A-LevelBiologyThe mitotic cell cycleOct/Nov 2017Paper 2 Q610 Marks
Extracellular growth factors are involved in the control of cell cycles in some mammalian cells. One of these growth factors is epidermal growth factor (EGF). Fig. 6.1 shows the events that occur when EGF is present at the surfaces of two cells, A and B. [Figure 6.1]
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