Suppose One Restriction Enzyme (Enzyme A) Makes Three Cuts in a Circular

question 85

Multiple Choice

Suppose one restriction enzyme (enzyme A) makes three cuts in a circular DNA molecule, and another restriction enzyme (enzyme B) makes one cut in that same DNA.The cuts are not in the same place, and the cut fragments are not exactly the same size.The restriction digestion is set up on an electrophoresis gel.How many bands should the gel pick up if only enzyme A is used in the restriction digestion?

• A) One
• B) Two
• C) Three
• D) Four
• E) Five

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