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.
Correct Answer:
Verified
Correct Answer:
Verified
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