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#Question id: 4330


Proto-oncogenes can change into oncogenes that cause cancer. Which of the following best explains the presence of these potential time bombs in eukaryotic cells?

#SCPH28 | Zoology
  1. Proto-oncogenes first arose from viral infections.

  2. Proto-oncogenes are mutant versions of normal genes.

  3. Proto-oncogenes are genetic "junk."

  4. Proto-oncogenes normally help regulate cell division.


Answer:- Option(s): 4


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