When restriction enzymes make cuts with _______ ends,the exposed DNA sequences can form _______ bonds with complementary sequences.
A) sticky;hydrogen
B) sticky;covalent
C) blunt;ionic
D) blunt;hydrogen
E) blunt;covalent

Question

Quizplus · Accepted Answer

Restriction enzymes can make "sticky" ends by cutting the DNA at specific points and leaving overhanging sequences. These overhanging sequences can form hydrogen bonds with complementary base pairs on another strand of DNA, allowing the two strands to be joined together. Blunt ends, on the other hand, are cut straight through both strands of DNA, leaving no overhang and making it more difficult for the DNA to rejoin. Therefore, choice A, sticky ends, is the best choice.

When Restriction Enzymes Make Cuts with _______ Ends,the Exposed DNA