What Is the Purpose of DNA Ligase in a Cloning

question 22

Multiple Choice

What is the purpose of DNA ligase in a cloning experiment?

• A) The purpose is to proofread the vector for mistakes.
• B) The purpose is to reestablish the stable sugar-phosphate backbone of the DNA molecule.
• C) The purpose is to allow the vector to enter into the cell.
• D) The purpose is to function as a selectable marker.

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