The ras gene is a proto-oncogene, a gene with a protein product that stimulate normal cell growth and division. Its product, the Ras protein, is a G protein that receives a signal from a growth factor receptor and transmits the signal to a protein kinase cascade, ultimately leading to cell cycle stimulation.
What is teh effect of a ras mutation that hyperactivates its GTPase activity?
A. promote cancer development
B. prevent cancer development
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