<prompt> In SCID, what type of DNA repair is defective?Double strand break repairNucleotide excision repairEnd Joining RepairMismatch repair  <response>: Defects in Double-Strand Break Repairs: Defects in Single-Strand Break Repairs: Non-Homologous End Joining Repair NHEJ SCID Severe Combined Immunodeficiency Disease RS-SCID Radiation sensitive Severe Combined Immunodeficiency Disease Nucleotide excision Repair NER Xeroderma Pigmentosa Homologous Repair HR Bloom syndrome Werner syndrome Breast cancer Base Excision Repair BER MUTYH associated Polyposis Mismatch Repair MMR HNPCC Hereditary Non-Polyposis Colorectal Cancer 