Aradiation oncologist may use to kill tumor cells using radiation

Radiotherapy. Radiotherapy is a form of cancer treatment which utilizes radiation in various forms such as x-rays, gamma rays, and electron beams or protons to kill or damage cancer cells so they cannot grow or multiply. This method of treatment is a localized treatment, which generally means that it does not cover the entire human body and only affects the area or part of the body where the radiation is targeted.

The basic repeating unit of nucleic acids are known as nucleotides. a nucleotide consists of three distinct chemical groups.