Question $11(1$ point$)$

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Which of the following statements is $($are$)$ correct about restriction enzymes?

I. They are used by bacteria to cut up foreign DNA.

II$.$ They cut DNA unevenly to produce "sticky ends."

III. They are non$-$specific and cut anywhere along a sequence.

IV$.$ They are involved with heterochromatin production.

I and II

I only

I, II$,$ and III

IV only

III and IV