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What is the purpose of using a DNA ligase in genetic engineering? (2023)

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Question: What is the purpose of using a DNA ligase in genetic engineering? (2023)

Options:

  1. To cut DNA
  2. To amplify DNA
  3. To join DNA fragments together
  4. To degrade RNA

Correct Answer: To join DNA fragments together

Exam Year: 2023

Solution: 

DNA ligase is an enzyme that joins DNA fragments together, which is essential for creating recombinant DNA molecules in genetic engineering.

What is the purpose of using a DNA ligase in genetic engineering? (2023)

Practice Questions

Q1
What is the purpose of using a DNA ligase in genetic engineering? (2023)
  1. To cut DNA
  2. To amplify DNA
  3. To join DNA fragments together
  4. To degrade RNA

Questions & Step-by-Step Solutions

What is the purpose of using a DNA ligase in genetic engineering? (2023)
  • Step 1: Understand that DNA is made up of smaller pieces called fragments.
  • Step 2: Know that in genetic engineering, scientists often need to combine different DNA fragments to create new DNA.
  • Step 3: Learn that DNA ligase is an enzyme that helps to join these DNA fragments together.
  • Step 4: Realize that by using DNA ligase, scientists can create recombinant DNA, which is DNA that has been formed by combining genetic material from different sources.
  • Step 5: Understand that this process is important for various applications in genetic engineering, such as creating genetically modified organisms or producing proteins.
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