hce_kmu
110年
普通生物及生化概論
第 87 題
Which of the following statements is CORRECT in DNA repair?
- A AlkB is involved in base-excision repair.
- B AP endonuclease is involved in mismatch repair.
- C ABC excinuclease is involved in nucleotide-excision repair.
- D DNA photolyase is involved in direct repair.
- E Dam methylase is involved in methyl-directed repair.
思路引導 VIP
如果你觀察到 DNA 鏈上出現了一個會造成雙螺旋結構嚴重扭曲的「大型損傷」（例如紫外線造成的胸腺嘧啶二聚體），細胞通常會傾向於只拔掉那個壞掉的鹼基，還是直接把附近一整段的核苷酸鏈都「切除」掉呢？而負責這種整段切除動作的酵素，其名稱通常會包含哪一個代表「切除」的關鍵字？