Multiple Choice
What is the role of protooncogenes in theories of how viruses cause cancer?
A) They prevent the immune system from attacking cancer- causing viruses.
B) They cause cancer viruses to replicate faster.
C) They play a role in the control of cell division.
D) They make cells more susceptible to infection by cancer- causing viruses.
E) They prevent cancer- causing viruses from leaving the cell.
Correct Answer:

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Correct Answer:
Verified
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