title: DNA repair synthesis in human heterokaryons. II. A test for heterozygosity in xeroderma pigmentosum and some insight into the structure of the defective enzyme.
mesh_terms: D000483:Alleles; D002467:Cell Nucleus / Q000378:metabolism*; D004247:DNA / Q000096:biosynthesis*; D004260:DNA Repair; D004171:Diploidy; D005260:Female; D005347:Fibroblasts; D006579:Heterozygote; D006801:Humans; D008297:Male; D008956:Models, Chemical; D009154:Mutation; D013936:Thymidine / Q000378:metabolism*; D014316:Tritium; D014983:Xeroderma Pigmentosum / Q000201:enzymology / Q000235:genetics*
chemical_list: D014316:Tritium; D004247:DNA; D013936:Thymidine