If a restriction enzyme cuts a circular DNA into three fragments, how many restriction sites are there in the DNA?
A)Two
B)Three
C)Four
D)Six
E)Five

Question

Quizplus · Accepted Answer

Restriction enzymes cut at specific sequences called restriction sites. If a circular DNA is cut into three fragments, it means the enzyme has cut at three different sites, creating three separate pieces.

If a Restriction Enzyme Cuts a Circular DNA into Three