Cancer development is more likely in older individuals or those exposed to mutagens because these factors increase the chance of accumulating the multiple genetic mutations typically required for cancer to develop. Cancer is not usually the result of a single mutation, nor is it primarily caused by mutations in the BRCA genes or primarily an inherited disease, although genetics can play a role.

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Cancer

Question 36

Multiple Choice

Cancer

A) is usually caused by a single mutation in a key gene.
B) is more likely to develop in older people or people who have been exposed to mutagens (mutation-causing agents) .
C) usually involves a mutation in the BRCA genes.
D) is primarily an inherited, and not an environmental, disease.

Correct Answer: