<prompt> UV radiation has which of the following effects on the cellsUV radiation has which of the following effects on the cellsStimulates formation of pyrimidine dimersPrevents formation of purine dimersAll of the above  <response>: Direct quote from Robbins.. The carcinogenicity of UV-B light is attributed to its formation of pyrimidine dimers in DNA. This type of DNA damage is repaired by the nucleotide excision repair pathway. The importance of the nucleotideexcision repair pathway of DNA repair is illustrated by the high frequency of cancers in individuals with the hereditary disorder xeroderma pigmentosum.. 