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?

A. Scientists who work with toxic chemicals

B. Therapist who operate radiation machines

C. Nurses who treat patients with viral infections

D. Researchers who study DNA replication

Option A, Scientists who work with toxic chemicals

Explanation:

It is given in the question that Cancer is a genetic disease which means only infected genetic material can cause cancer.

In all the given options i. e 2, 3 and 4, professionals are involved in some kind of genes related work. Thus, people working with radiation machines, patients with viral infections are exposed to some form of DNA or are indulge in its replication. Therefore, such organism have high chances of getting cancer.

Thus, only option A iscorrect.

Answer: Is A

Carcinogens (Chemicals) may increase the risk of cancer by altering cellular metabolism or damaging DNA directly in cells, which interferes with biological processes, and induces the uncontrolled, malignant division, ultimately leading to the formation of tumors.