The opposing aspect of cell growth control is that tumor suppressor genes often function to prevent tumor formation and cell proliferation. These genes are frequently lost or inactivated in tumors, eliminating any inhibitors of cell growth and promoting the uncontrolled growth of tumor cells.
The molecular biology of cells serves as a unifying theme in The Cell, much as it did in the first edition, with specific issues being presented as illustrations of more fundamental concepts throughout.
No question was found in the text. The text is actually a fragment from a book called "The Cell: A Molecular Approach, Second Edition", written by Geoffrey M. Cooper and published in 2000.
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