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What is the purpose of using a promoter in a recombinant DNA molecule? (2021)

Practice Questions

Q1
What is the purpose of using a promoter in a recombinant DNA molecule? (2021)
  1. To initiate DNA replication
  2. To enhance the stability of the DNA
  3. To drive the expression of the inserted gene
  4. To facilitate DNA repair

Questions & Step-by-Step Solutions

What is the purpose of using a promoter in a recombinant DNA molecule? (2021)
  • Step 1: Understand that a promoter is a specific sequence of DNA.
  • Step 2: Know that the promoter is located before a gene in the DNA.
  • Step 3: Learn that the promoter's job is to start the process of transcription.
  • Step 4: Realize that transcription is when the DNA is copied into RNA.
  • Step 5: Understand that RNA is needed to make proteins, which are important for the cell.
  • Step 6: Recognize that in recombinant DNA, scientists insert a gene of interest.
  • Step 7: Know that the promoter helps to ensure that this inserted gene is expressed, or turned on, so it can produce the desired protein.
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