A single nucleotide will contain a phosphate group, sugar molecule (deoxyribose) and a nitrogenous base ( which could be adenine, thyamine, guanine or cytosine ).
Answer from: Quest
The infrared (ir) and the ultraviolet(uv) represent the two extremities of the visible spectrum (400-700nm). while ir represents electromagnetic radiation with wavelengths longer than those of visible light, uv represents wavelengths shorter than visible light