試題詳解

43. Which of the following statements about gene cloning is FALSE?
(A) DNA with specific palindromic sequence can be cut by restriction enzymes.
(B) EcoRI, a restriction enzyme from E. coli, cut DNA into sticky ends.
(C) Gene of interest can be linked into plasmid with DNA polymerase.
(D) The plasmids are transformed into competent cells.
(E) Ions such as CaCl2 affect whether or not a bacterium will be competent cells.