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Xeroderma pigmentosum is caused by ______________________(a) UV radiations(b) X-rays(c) Gamma radiations(d) Beta-raysI have been asked this question at a job interview.The origin of the question is DNA Repair topic in section DNA Replication and Repair, Cellular Reproduction of Cell Biology

Answer»

The correct answer is (a) UV radiations

To explain: Xeroderma pigmentosum (XP) is a rare genetic DISORDER due to DEFICIENCY in nucleotide EXCISION repair system that cannot remove segments of DNA DAMAGED by ultraviolet radiations.



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