Xeroderma pigmentation is caused due to a group of closely related abnormalities in: (A) Mismatch repair, (B) Base excision repair, (C) Nucleotide excision rapair, (D) SOS repair
Answer is C. Autosomal recessive conditionThere are seven xeroderma pigmentosum genes necessary for NER mechanism in humans Mutation in any of them lead to the condition XPRef: DM VASUDEVAN 7th edition, page no: 584