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Discuss mechanisms by which gene expression may be altered. How do these alterations induce cancer-causing mutations...

Discuss mechanisms by which gene expression may be altered. How do these alterations induce cancer-causing mutations in cell DNA? Explain how cancer is formed.

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Genes control proteins production with specific functions and they act as messengers in the body. Correct instructions/ signal is required to produce a protein to perform correct function. Cancer usually begins if one or more Genes mutate(sudden heritable changes) producing abnormal protein. This protein gives different signal/information causing cells to multiply uncontrollably and thus becomes cancerous. Mechanisms include 1. acquired mutation(Radiation, viruses, age) 2. Germline mutation.

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