All the statements regarding proto oncogenes are correct here.
A gene essential for healthy cell development. A proto-oncogene may undergo mutations (changes) that turn it into an oncogene, which can promote the development of cancer cells. A mutant gene that has the potential to cause cancer is known as an oncogene. Proto-oncogenes, which are oncogenes before they undergo mutations, control healthy cell division. Normally, a proto-oncogene behaves much like a car's gas pedal. It promotes cell division and growth. An oncogene acts as a jammed gas pedal, causing the cell to divide uncontrollably. Oncogenes can be activated (turned on) in cells in a variety of ways.
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