Question Detail
Question
What is the action of the enzyme DNA ligase? a. DNA is broken up at a specific sites b. DNA fragments are joined together c. DNA replication occurs d. DNA transcription occurs
Correct Answer
Option B is the correct answer.
Detailed Explanation
DNA ligase is responsible for joining DNA fragments together by catalyzing the formation of phosphodiester bonds. It is crucial in DNA replication (joining Okazaki fragments) and DNA repair.
Hint
It's a molecular 'stitcher'.