遺傳性非息肉症大腸直腸癌(hereditary nonpolyposis colon cancer, HNPCC)病患是在何種DNA 修復功能上產生缺失?
核苷酸切除修復(nucleotide excision repair)
鹼基切除修復(base excision repair)
重組修復(recombinational repair)
核酸錯誤配對修復(mismatch repair)