What is the significance of the promoter region in gene expression?

Practice Questions

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It is where RNA polymerase binds to initiate transcription
It codes for the protein product
It is involved in splicing of mRNA
It terminates transcription

Questions & Step-by-step Solutions

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Q: What is the significance of the promoter region in gene expression?

Solution: The promoter region is crucial for the initiation of transcription as it is the site where RNA polymerase binds to start synthesizing RNA.

Steps: 7

Step 1: Understand that genes are segments of DNA that provide instructions to make proteins.
Step 2: Know that gene expression is the process of turning on a gene to produce RNA and proteins.
Step 3: Identify the promoter region, which is a specific sequence of DNA located at the beginning of a gene.
Step 4: Recognize that the promoter region acts like a 'start signal' for gene expression.
Step 5: Learn that RNA polymerase is an enzyme that binds to the promoter region to begin the process of transcription.
Step 6: Understand that transcription is the first step in gene expression, where RNA is synthesized from the DNA template.
Step 7: Conclude that without the promoter region, RNA polymerase cannot bind, and gene expression cannot occur.

What is the significance of the promoter region in gene expression?

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