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    Glossaryoncogene

    gene that can cause cancer when mutated or overexpressed

    An oncogene is a type of gene that, when mutated or expressed at high levels, can transform a normal cell into a cancerous one. In simpler terms, it's like a switch that, when turned on incorrectly, can lead to uncontrolled cell growth and potentially cancer. For professionals, oncogenes are often derived from proto-oncogenes, which are normal genes involved in cell growth and division, but become harmful when altered.

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