Which of the following restriction enzyme sites would produce blunt- ended fragments? (The arrow represents the cutting site of the enzyme.)
A) CCC$GGG
B) G$AATTC
C) C$CGG
D) A$AGCTT
E) G$GATCC

Question

Quizplus · Accepted Answer

Blunt-ended fragments are produced when the restriction enzyme cuts straight through the DNA strands at the same position on both strands. Option A (CCC$GGG) represents a palindromic sequence where the enzyme cuts between the same base pairs on both strands, resulting in blunt ends.

Which of the Following Restriction Enzyme Sites Would Produce Blunt-