Cancer is a disease that is caused by genetic mutations. Which health professionals are least likely to face risk factors in their work that could increase their chances of cancer?

Scientists working with toxic chemicals may be exposed to carcinogens, radiation-machine operators may be exposed to radiation, and nurses treating patients with viral infections may encounter cancer-causing viruses. Researchers who study DNA replication are least likely to face any of these direct workplace cancer risks, so the best choice is researchers who study DNA replication.

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