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

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Question: What is the purpose of using a promoter in a recombinant DNA construct? (2021)

Options:

  1. To cut the DNA
  2. To initiate transcription of the gene
  3. To stabilize the DNA
  4. To replicate the DNA

Correct Answer: To initiate transcription of the gene

Exam Year: 2021

Solution: 

A promoter is a DNA sequence that initiates transcription of a gene, allowing for the expression of the inserted gene in the host organism.

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

Practice Questions

Q1
What is the purpose of using a promoter in a recombinant DNA construct? (2021)
  1. To cut the DNA
  2. To initiate transcription of the gene
  3. To stabilize the DNA
  4. To replicate the DNA

Questions & Step-by-Step Solutions

What is the purpose of using a promoter in a recombinant DNA construct? (2021)
  • Step 1: Understand that a promoter is a special part of DNA.
  • Step 2: Know that the promoter tells the cell when to start making a protein from a gene.
  • Step 3: Realize that in recombinant DNA, scientists insert a gene into a new organism.
  • Step 4: The promoter is added to help the new organism read and use the inserted gene.
  • Step 5: This means the gene can be expressed, or turned into a protein, in the host organism.
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