What does radiation therapy target when used to treat cancer victims. Does it destroy the DNA or the whole cel

Answer 1

Radiation therapy kills the cancer cells that are supplied with oxygen. A catagory of cancer cells are with oxygen, partial oxygen, and without oxygen. or apoxic,hypoxic ect... You have to go back for many treatments since it only kills cancer cells that are oxyginated.

Answer 2

Radiation therapy pre-dates our knowledge of DNA, but nucleic acids are affected by radiation at least as much as many other structures, which is actually something of a mixed blessing in radiation therapy.

Answer 3

Whole cell .All cancerous cells are destroyed by irradiation.