Question

radiation therapy primarily uses high - energy particles such as x - rays and ___ rays to destroy cancer cells by damaging their genetic material. radio, microwave, gamma, infrared

Explanation:

Radiation therapy uses high - energy particles like X - rays and gamma rays to damage cancer cells' genetic material. Radio, microwave, and infrared do not have sufficient energy for this purpose. Gamma rays are high - energy electromagnetic radiation used in such treatments.

Answer:

gamma