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What Is the Difference Between Oncogenes and Proto-Oncogenes

Question 23

Multiple Choice

What is the difference between oncogenes and proto-oncogenes?


A) Oncogenes encode proteins that help a cell divide under favorable conditions; proto-oncogenes encode proteins that help a cell divide under unfavorable conditions.
B) Oncogenes encode proteins that prevent cell division under unfavorable conditions; proto-oncogenes encode proteins that allow cell division under unfavorable conditions.
C) Proto-oncogenes encode proteins that help a cell divide under favorable conditions; oncogenes encode proteins that help a cell divide under unfavorable conditions.
D) Proto-oncogenes encode proteins that prevent cell division under unfavorable conditions; oncogenes encode proteins that allow cell division under unfavorable conditions.

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