試題詳解

7. Which of the following statements regarding restriction enzymes is correct?

(1) Restriction enzymes are named for the bacterium they are derived from.

(2) Restriction enzymes protect bacteria from viral infection.

(3) In order to insert a foreign gene into a plasmid, both must be cut by the same restriction enzyme.
(A) (1) and (2)
(B) (1) and (3)
(C) (2) and (3)
(D) None is correct
(E) All is correct