Figure 7-7. Epithelial and Fibroblastic Morphologies Exhibited by 
the CHO-K1 Cell. 
Note: (A) shows the standard epithelial morphology usually adopted by the 
cell. (B) illustrates the highly fibroblastic form assumed by a potentially 
contact-inhibited cell isolated from a population treated with the known 
carcinogenic agent chromium trioxide. 
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