Suppose Restriction Enzyme a Makes Two Cuts in a Linear

question 146

Multiple Choice

Suppose restriction enzyme A makes two cuts in a linear DNA fragment and restriction enzyme B makes one cut in that same DNA.The cuts are not in the same place, and no two of the cut fragments is exactly the same size.The digested samples are run in an electrophoresis gel.How many bands should the gel pick up if only enzyme A is used in the restriction digest?

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