22. The shape of final product in the trans-splicing is? (A) Iariat (B) linear (C) circular (D) Y~shape

22. The shape of final product in the trans-splicing is?
(A) Iariat
(B) linear
(C) circular
(D) Y~shape

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統計： A(0), B(1), C(1), D(0), E(0) #3188865

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1. Restriction endonucleases are commonly used in DNA cloning. Which of the following is not true? (A) Restriction endonucleases are main components of the bacterial restriction- modification (R-M) system. (B) The normal function of the R-M system is to degrade DNA from invading phages. (C) In a R-M system, phosphatases are frequently used to protect the same DNA sequences of bacteria from digestion by the restriction endonucleases. (D) The most useful R-M systems in DNA cloning are the type II system, and the restriction activities do not need ATP as a cofactor. (E) In the type III R-M systems, one enzyme contains two different subunits, one for DNA recognition and modification, and another for DNA cleavage.

22. The shape of final product in the trans-splicing is?
(A) Iariat
(B) linear
(C) circular
(D) Y~shape

詳解 (共 1 筆)

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