What role do these genes, and one gene in particular, normally play in cell division, and what happens when they gain mutations? You should find one to two reliable sources that discuss that gene. Focus on the group of cancer-causing genes that this gene belongs to, its normal function, and why the mutation can lead to the cell cycle becoming out of control. Is your mutated gene inherited, or does it become mutated throughout a person’s lifetime? If you could develop a drug that treats cancer caused by your mutated gene, how would the drug work? Would the drug damage non-cancerous cells as well?