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Which of the following statements about cancer is false? Mutations in oncogenes genes are gain-of-function mutations....

Which of the following statements about cancer is false?

Mutations in oncogenes genes are gain-of-function mutations.

Growing old is a risk factor for developing cancer.

The normal function of tumor suppressor genes is to slow cell division.

P53 is an oncogene.

Some viruses can induce cancer.
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