Which of the following restriction enzymes produces blunt ends?
(a) Sal I (b) Eco RV
(c) Xho (d) Hind III
(b) Eco RV is a type II restriction endonuclease isolated from strains of E.Coli. It creates blunt ends. The enzyme recognizes the palindromic 6-base DNA sequence and makes cut at vertical line. The blunt ends are formed as: