What role does DNA ligase play in recombinant DNA technology?

Practice Questions

Q1
What role does DNA ligase play in recombinant DNA technology?
  1. It cuts DNA into fragments
  2. It synthesizes RNA
  3. It joins DNA fragments together
  4. It unwinds the DNA helix

Questions & Step-by-Step Solutions

What role does DNA ligase play in recombinant DNA technology?
  • Step 1: Understand that DNA is made up of smaller pieces called fragments.
  • Step 2: Know that recombinant DNA technology involves combining DNA from different sources.
  • Step 3: Realize that when scientists want to join these DNA fragments, they need a special helper.
  • Step 4: Learn that DNA ligase is the enzyme that helps to join these DNA fragments together.
  • Step 5: Remember that without DNA ligase, the DNA fragments would not stick together, making it impossible to create recombinant DNA.
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