Which of the Following Describes DNA Ligase

Question

Which of the following describes DNA ligase?
A) the enzyme that seals together DNA fragments generated by restriction enzyme digestion to produce an original DNA molecule
B) the enzyme that seals together DNA fragments generated by restriction enzyme digestion to produce a recombinant DNA molecule
C) the enzyme that seals together RNA fragments generated by restriction enzyme digestion to produce a recombinant DNA molecule
D) the enzyme that seals together RNA fragments generated by restriction enzyme digestion to produce a recombinant RNA molecule

Accepted Answer

DNA ligase is the enzyme responsible for joining DNA fragments together, particularly after these fragments have been cut by restriction enzymes. This process is crucial in the formation of recombinant DNA molecules, where DNA fragments from different sources are combined.