A Circular DNA of 1 Kb Length Is Cut with a Restriction

Multiple Choice

A circular DNA of 1 kb length is cut with a restriction enzyme whose precise recognition sequence is not known.The digest yields four fragments of approximately equal size.What is the most likely conclusion from these data?

A) The enzyme is a 4-base cutter.
B) The enzyme is a 6-base cutter.
C) The enzyme is an 8-base cutter.
D) The enzyme leaves blunt ends.
E) This was a partial digest.