問題詳情
44. In E. coli mating system, Hfr type could be a genetic donor and F-could be a genetic recipient. After the mating betweenHfr and F-type cells, the F-recipient _____.
(A) becomes Hfr
(B) becomes H+
(C) becomes F-
(D) gets episome
(E) remains F-
(A) becomes Hfr
(B) becomes H+
(C) becomes F-
(D) gets episome
(E) remains F-
參考答案
答案：E
難度：困難0.375
統計：A(3),B(2),C(3),D(3),E(9)
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