A proto-oncogene is a normal gene that has a positive influence on cell proliferation.

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A proto-oncogene is a normal gene that, when mutated or activated inappropriately, can become an oncogene and promote uncontrolled cell growth, leading to the development of cancer. However, in its normal, non-mutated state, a proto-oncogene has a positive influence on cell proliferation by aiding in the regulation of cellular processes such as cell cycle progression and DNA repair.

A Proto-Oncogene Is a Normal Gene That Has a Positive