問題詳情
62. Which of the following mechanism is NOT how bacteria defend against phage infection?
(A) bacteriawith mutant receptors unrecognizable to phages
(B) restriction enzymes degrade exogenous geneticelements
(C) type II topoisomerases facilitate conformational changes of DNA during replication andtranscription
(D) CRISPR-Cas system
(E) none
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增
用户評論
【用戶】熊熊讚
【年級】高三下
【評論內容】拓撲酶促進DNA在複和轉過程中的構形變化與對噬菌體的防禦無關。