the radiations that are used to treat cancers are of the gamma type. primarily emitted from cobalt-60 (a radioactive isotope). and it is more controlled than other radiation exposures. i.e. solar radiation which is not controlled.
hope that this helps.
Different forms of a given gene are known as "alleles". Alleles are essential for the formation of life and add to diversity both within and outside the organism itself in many ways.
Somatic cells or body cells of an organism undergo cellular division that maintains the number of chromosomes of the beginning cell prior to the division, this process is called mitosis.
Proteins are made inside cells. When a cell makes a protein it is called protein synthesis.