Oncogenesis and Tumor Cell Biology · NCLEX Exam

Which of the following best describes proto-oncogenes?

  1. Genes that suppress tumor formation
  2. Genes that promote normal cell growth and differentiation
  3. Mutated genes that inhibit apoptosis
  4. Viral genes causing tumor growth
Show answer and explanation

Correct answer: Genes that promote normal cell growth and differentiation

Proto-oncogenes regulate normal cell growth; when mutated, they become oncogenes that drive malignant transformation.

Difficulty: Medium Question 4 of 20

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