Which of the following statements concerning restriction endonucleases is true ?
A) They attack RNA, not DNA.
B) They can produce "sticky ends".
C) They attack single-stranded sequences only.
D) They do not display sequence specificity in their site of attack.

Question

Quizplus · Accepted Answer

Restriction endonucleases are enzymes that cut DNA at specific sequences, often leaving overhanging sequences known as "sticky ends." These sticky ends can then easily pair with complementary sequences, facilitating the insertion of DNA fragments into vectors in molecular cloning procedures.

Which of the Following Statements Concerning Restriction Endonucleases Is True