Choose the correct pair from the following :

Question

Accepted Answer

- Ligases are enzymes that join DNA fragments together (e.g., joining an antibiotic resistance gene with a plasmid vector) , .
- Polymerases extend primers using nucleotides to synthesize/polymerise DNA, they do not break it .
- Nucleases are enzymes that degrade DNA; specifically, Exonucleases remove nucleotides from the *ends* of the DNA, whereas Endonucleases make cuts at specific positions *within* the DNA .
- Separation of DNA strands is typically achieved by denaturation (heat) or enzymes like helicases, not nucleases.
Therefore, only the pair describing Ligases is correct.

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