Question

Cancerous cells can be destroyed by radiation due to

• A. Rapid cell division
• B. Lack of nutrition
• C. Fast mutation
• D. Lack of oxygen

Answer 1

The correct option is C

Fast mutation

Radiation therapy can either damage DNA directly or create charged particles (free radicals) within the cells that can in turn damage the DNA. Cancer cells whose DNA is damaged beyond repair stop dividing or die. When the damaged cells die, they are broken down and eliminated by the body's natural processes.