Question:
Which enzyme joins DNA fragments?
Which enzyme joins DNA fragments?
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Ligase is essential for sealing nicks and joining DNA fragments during replication and repair.
Updated On: Sep 3, 2025
- Polymerase
- Ligase
- Exonuclease
- Endonuclease
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The Correct Option is B
Solution and Explanation
Step 1: Role of ligase in DNA repair.
DNA ligase is an enzyme that plays a crucial role in the repair and replication of DNA by joining DNA fragments together.
Step 2: How ligase functions.
Ligase works by catalyzing the formation of a phosphodiester bond between the 3' hydroxyl group and the 5' phosphate group of adjacent nucleotides.
Step 3: Conclusion.
Thus, the correct answer is ((B) Ligase.
Final Answer: \[ \boxed{\text{Ligase}} \]
DNA ligase is an enzyme that plays a crucial role in the repair and replication of DNA by joining DNA fragments together.
Step 2: How ligase functions.
Ligase works by catalyzing the formation of a phosphodiester bond between the 3' hydroxyl group and the 5' phosphate group of adjacent nucleotides.
Step 3: Conclusion.
Thus, the correct answer is ((B) Ligase.
Final Answer: \[ \boxed{\text{Ligase}} \]
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