An Enzyme that Joins the Ends of Two Strands of Nucleic Acid is HomeEnzymology MCQsAn Enzyme that Joins the Ends of Two Strands of Nucleic Acid is Q. An Enzyme that Joins the Ends of Two Strands of Nucleic Acid is: A. Polymerase B. ligase C. synthetase D. Helicase Answer: Ligase