How are oncogenes and proto-oncogenes different?
a. Proto-oncogenes are activated tumor genes, whereas oncogenes are inactivated tumor suppressor genes.
Formatted: Centered
b. Oncogenes can lead to tumor formation, whereas proto-oncogenes prevent tumor formation.
c. Oncogenes can lead to tumor formation, whereas proto-oncogenes are inactivated forms of oncogenes.
d. Oncogenes are tumor suppressors, whereas proto-oncogenes cause tumor formation.
Correct Answer: C
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