Correct option is D
lonising radiation affects the atoms in living cells and thereby damages their genetic material (DNA).
This process can directly damage DNA by breaking its strands or indirectly by creating free radicals that attack DNA.
Examples include X-rays, gamma rays, and particles like alpha and beta particles.
Deoxyribonucleic acid (DNA) is a molecule composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth, and reproduction of all known organisms.
