Which of the Following Events May Serve as a First

question 18

Multiple Choice

Which of the following events may serve as a first step in cancer development?

• A)Overexpression of angiogenesis-promoting factors
• B)Duplication of an oncogene
• C)Mutation of a tumor-suppressor gene
• D)Both duplication of an oncogene and mutation of a tumor-suppressor gene
• E)None of the answers is correct.

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