What is the Relationship Between Proto-Oncogenes and Oncogenes

Question

What is the relationship between proto-oncogenes and oncogenes?
A) Oncogenes may develop into cancer-causing proto-oncogenes as a result of synergism.
B) Oncogenes prevent proto-oncogenes from encoding proteins for cell division.
C) Proto-oncogenes may develop into cancer-causing oncogenes as a result of mutations.
D) Proto-oncogenes allow oncogenes to encode proteins that prevent cell division.

Accepted Answer

Proto-oncogenes are normal genes that regulate cell growth and division. They can become oncogenes when mutations occur in the gene, causing it to be overactive or expressed at inappropriate times. This can lead to uncontrolled cell growth and division, which can result in cancer. Therefore, proto-oncogenes can develop into cancer-causing oncogenes as a result of mutations.