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The correct answer is B. A mutation that destroys the kinase activity of the receptor. Option A is incorrect because preventing dimerization of the receptor would prevent activation of the receptor, thus inhibiting cell proliferation. Option C is incorrect because inactivating the protein tyrosine phosphatase would result in increased phosphorylation of the receptor, leading to prolonged activation and potentially increased cell proliferation. Option D is incorrect because preventing the binding of the normal extracellular signal to the receptor would also prevent activation of the receptor and inhibit cell proliferation.

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The correct answer is B. A mutation that destroys the kinase activity of the receptor. Option A is incorrect because preventing dimerization of the receptor would prevent activation of the receptor, thus inhibiting cell proliferation. Option C is incorrect because inactivating the protein tyrosine phosphatase would result in increased phosphorylation of the receptor, leading to prolonged activation and potentially increased cell proliferation. Option D is incorrect because preventing the binding of the normal extracellular signal to the receptor would also prevent activation of the receptor and inhibit cell proliferation.
TopicAll topics
SubjectBiology
ClassClass 11